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#16
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"NTLDR IS MISSING" (Win XP-3)
From: "Barry Bruyea"
You may have something here. I bought a new cable yesterday and installed it, but this morning the computer didn't finish booting and went to CHKDSK, ran through the process and rebooted. After the complete reboot and restarted the computer and it stopped dead. I went in, pulled the cable, reset it and the computer booted OK. I'm not sure where to go at this point. Can the socket for the SATA cable be pulled out? And be replaced by a new (better) connector and cable? Examine the make of the harddisk and then download the manufacturer's diagnostic tool .ISO image. Create a CDROM from the ISO image and boot the PC from the CDROM and then perform an extensive diagnoostic of the drive... Western Digital - WD Diagnostics SeaGate - SeaTools IBM/Hitachi - Drive Fitness Test (DFT) -- Dave Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk http://www.pctipp.ch/downloads/dl/35905.asp |
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#17
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"NTLDR IS MISSING" (Win XP-3)
"Barry Bruyea" wrote in message
... On Tue, 01 May 2012 09:13:48 -0400, Paul wrote: David H. Lipman wrote: From: "Barry Bruyea" On Mon, 30 Apr 2012 17:29:11 -0500, VanguardLH wrote: Thanks for all the advice. I took the side panel off and reset all of the cables and it booted great, yesterday. It didn't boot again this morning and I did the SATA cable thingy again and it booted fine. I'm going to replace the cable today to see if that helps. The cable is a Red Herring. The fact that NTLDR isn't loading periodically is a logical issue not a physical issue. Otherwise you would have received a message indicating that the OS wasn't available to boot from. It isn't seeing a dile not that it isn't seeing the hard disk at all or the OS. The chances are you have a disk issue concerning the file structure or something like that. The first course of action is the "CHKDSK /F" I wrote earlier. The second would be to run the manufacturer's hard disk dioagnostics. Western Digital - WD Diagnostics SeaGate - SeaTools IBM/Hitachi - Drive Fitness Test (DFT) Dave, be aware that first-generation SATA cables, have no retention feature. Back when they first came out, SATA cables were falling off. To stop that, sometimes another cable can help. Don't dismiss the cable issue that easily. To give another example, you can actually pull the entire SATA connector right off the motherboard :-) Some were so cheaply made, they won't stay put, and will rip right off. But to the user, that causes a more obvious issue than the "loose cable" thing. As you say, that probably isn't Barry's issue, but there can be storage problems caused by the loose cable thing. The cables I have here, aren't the greatest, but they have a "compression" or dimple feature, that applies compressive force, so the cable doesn't fall off quite like the first-gen ones did. You can also get connectors and cables, with matching metal retention features, which are a much better design. I don't have any of those. (And that's not ESATA either, that's for inside the computer. For some of the retention schemes, the two ends have to be designed to match, for the retention to work well.) It's too bad the SATA committee did such a poor job on their first try. There wouldn't have been nearly as much variation in cable design, if their first design was the right design. Paul You may have something here. I bought a new cable yesterday and installed it, but this morning the computer didn't finish booting and went to CHKDSK, ran through the process and rebooted. After the complete reboot and restarted the computer and it stopped dead. I went in, pulled the cable, reset it and the computer booted OK. I'm not sure where to go at this point. Can the socket for the SATA cable be pulled out? And be replaced by a new (better) connector and cable? As Dave has already mentioned (twice), run a hard drive diagnostic from a bootable CD made with the diagnostic's disc maker/installer. If you don't know what brand your hard drive is, Hitachi Drive Fitness test (DFT) works on most brands of hard drive. Be sure to read and follow the instructions on the web page to correctly make the bootable disc. Hitachi DFT: http://www.hitachigst.com/support/downloads/#DFT -- Glen Ventura MS MVP Oct. 2002 - Sept. 2009 CompTIA A+ |
#18
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"NTLDR IS MISSING" (Win XP-3)
Barry Bruyea wrote:
On Tue, 01 May 2012 09:13:48 -0400, Paul wrote: David H. Lipman wrote: From: "Barry Bruyea" On Mon, 30 Apr 2012 17:29:11 -0500, VanguardLH wrote: Thanks for all the advice. I took the side panel off and reset all of the cables and it booted great, yesterday. It didn't boot again this morning and I did the SATA cable thingy again and it booted fine. I'm going to replace the cable today to see if that helps. The cable is a Red Herring. The fact that NTLDR isn't loading periodically is a logical issue not a physical issue. Otherwise you would have received a message indicating that the OS wasn't available to boot from. It isn't seeing a dile not that it isn't seeing the hard disk at all or the OS. The chances are you have a disk issue concerning the file structure or something like that. The first course of action is the "CHKDSK /F" I wrote earlier. The second would be to run the manufacturer's hard disk dioagnostics. Western Digital - WD Diagnostics SeaGate - SeaTools IBM/Hitachi - Drive Fitness Test (DFT) Dave, be aware that first-generation SATA cables, have no retention feature. Back when they first came out, SATA cables were falling off. To stop that, sometimes another cable can help. Don't dismiss the cable issue that easily. To give another example, you can actually pull the entire SATA connector right off the motherboard :-) Some were so cheaply made, they won't stay put, and will rip right off. But to the user, that causes a more obvious issue than the "loose cable" thing. As you say, that probably isn't Barry's issue, but there can be storage problems caused by the loose cable thing. The cables I have here, aren't the greatest, but they have a "compression" or dimple feature, that applies compressive force, so the cable doesn't fall off quite like the first-gen ones did. You can also get connectors and cables, with matching metal retention features, which are a much better design. I don't have any of those. (And that's not ESATA either, that's for inside the computer. For some of the retention schemes, the two ends have to be designed to match, for the retention to work well.) It's too bad the SATA committee did such a poor job on their first try. There wouldn't have been nearly as much variation in cable design, if their first design was the right design. Paul You may have something here. I bought a new cable yesterday and installed it, but this morning the computer didn't finish booting and went to CHKDSK, ran through the process and rebooted. After the complete reboot and restarted the computer and it stopped dead. I went in, pulled the cable, reset it and the computer booted OK. I'm not sure where to go at this point. Can the socket for the SATA cable be pulled out? And be replaced by a new (better) connector and cable? Run the disk diagnostic. There's more to this than the cable. Your symptoms don't match just a cabling problem. ******* My purpose in mentioning cabling, is for the sake of completeness. If you work on a system, which had first-generation SATA cabling, this kind of thing was more of a problem. As a troubleshooter, you shouldn't dismiss the cabling entirely, unless you've checked it and found it in good working order. The cable should have "retention force" and resist attempts to disconnect the cable. The cable should also be cosmetically perfect, no bends or kinds, as bending the cable will damage it electrically (increased error rate). If you run the disk diagnostic, you'll have a better idea how healthy the disk is. Or, use a program such as HDTune, and look at the SMART statistics page. Or any other SMART utility for that matter. In HDTune, I look at Reallocated Sector Count and Current Pending Sector value, as an indicator of health. Running an actual disk diagnostic, one that reads every sector, will tell you even more. For example, on my current disk... Data field says zero. Current Worst Threshold Data Status Reallocated Sector Count 100 100 36 0 OK Current Pending Sector 100 100 0 0 OK You can get HDTune here, if you want to try it out. But I'd sooner get the hard disk diagnostic for your brand of disk first, as it's a more thorough test. The HDTune is for a quick check - if I saw severe trouble, like a high Current Pending, the HDTune would be telling me to back up immediately. I made a mistake before, where I ignored trouble signs, and decided to do a backup the next day. And when I turned on the computer the next day, it was dead (bad drive). Lost all my data. Now, if I see trouble, I keep the power on the PC, until the backup is complete, and then I can go to bed. (Gives you SMART statistics, if available from the hardware) http://www.hdtune.com/files/hdtune_255.exe Disk diagnostics can do both read testing, or read/write testing. Usually the diagnostic will warn you, if some choice in the menu, is destructive. Just use common sense. The tools I use here, as far as I can recollect, are read-only testing, and there isn't a write option. But since there are different brands of disks, and different diagnostics, it pays to keep your eyes open. Don't be in too much of a rush clicking things. Oh, and backups are good, in case nobody has mentioned that already. You should keep a good disk, external to the computer, perhaps USB connected, to keep your data safe. The fact we're having these conversations, you should have a backup in hand. And hurry off to the store, if you don't have a good disk to put it on... Paul |
#19
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"NTLDR IS MISSING" (Win XP-3)
On Wed, 2 May 2012 07:42:23 -0400, "David H. Lipman"
wrote: From: "Barry Bruyea" You may have something here. I bought a new cable yesterday and installed it, but this morning the computer didn't finish booting and went to CHKDSK, ran through the process and rebooted. After the complete reboot and restarted the computer and it stopped dead. I went in, pulled the cable, reset it and the computer booted OK. I'm not sure where to go at this point. Can the socket for the SATA cable be pulled out? And be replaced by a new (better) connector and cable? Examine the make of the harddisk and then download the manufacturer's diagnostic tool .ISO image. Create a CDROM from the ISO image and boot the PC from the CDROM and then perform an extensive diagnoostic of the drive... Western Digital - WD Diagnostics SeaGate - SeaTools IBM/Hitachi - Drive Fitness Test (DFT) Thanks for the advice, I'm certainly going to give it a try because this is becoming a real pain. |
#20
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"NTLDR IS MISSING" (Win XP-3)
On Wed, 02 May 2012 10:03:28 -0400, Paul wrote:
Barry Bruyea wrote: On Tue, 01 May 2012 09:13:48 -0400, Paul wrote: David H. Lipman wrote: From: "Barry Bruyea" On Mon, 30 Apr 2012 17:29:11 -0500, VanguardLH wrote: Thanks for all the advice. I took the side panel off and reset all of the cables and it booted great, yesterday. It didn't boot again this morning and I did the SATA cable thingy again and it booted fine. I'm going to replace the cable today to see if that helps. The cable is a Red Herring. The fact that NTLDR isn't loading periodically is a logical issue not a physical issue. Otherwise you would have received a message indicating that the OS wasn't available to boot from. It isn't seeing a dile not that it isn't seeing the hard disk at all or the OS. The chances are you have a disk issue concerning the file structure or something like that. The first course of action is the "CHKDSK /F" I wrote earlier. The second would be to run the manufacturer's hard disk dioagnostics. Western Digital - WD Diagnostics SeaGate - SeaTools IBM/Hitachi - Drive Fitness Test (DFT) Dave, be aware that first-generation SATA cables, have no retention feature. Back when they first came out, SATA cables were falling off. To stop that, sometimes another cable can help. Don't dismiss the cable issue that easily. To give another example, you can actually pull the entire SATA connector right off the motherboard :-) Some were so cheaply made, they won't stay put, and will rip right off. But to the user, that causes a more obvious issue than the "loose cable" thing. As you say, that probably isn't Barry's issue, but there can be storage problems caused by the loose cable thing. The cables I have here, aren't the greatest, but they have a "compression" or dimple feature, that applies compressive force, so the cable doesn't fall off quite like the first-gen ones did. You can also get connectors and cables, with matching metal retention features, which are a much better design. I don't have any of those. (And that's not ESATA either, that's for inside the computer. For some of the retention schemes, the two ends have to be designed to match, for the retention to work well.) It's too bad the SATA committee did such a poor job on their first try. There wouldn't have been nearly as much variation in cable design, if their first design was the right design. Paul You may have something here. I bought a new cable yesterday and installed it, but this morning the computer didn't finish booting and went to CHKDSK, ran through the process and rebooted. After the complete reboot and restarted the computer and it stopped dead. I went in, pulled the cable, reset it and the computer booted OK. I'm not sure where to go at this point. Can the socket for the SATA cable be pulled out? And be replaced by a new (better) connector and cable? Run the disk diagnostic. There's more to this than the cable. Your symptoms don't match just a cabling problem. ******* My purpose in mentioning cabling, is for the sake of completeness. If you work on a system, which had first-generation SATA cabling, this kind of thing was more of a problem. As a troubleshooter, you shouldn't dismiss the cabling entirely, unless you've checked it and found it in good working order. The cable should have "retention force" and resist attempts to disconnect the cable. The cable should also be cosmetically perfect, no bends or kinds, as bending the cable will damage it electrically (increased error rate). If you run the disk diagnostic, you'll have a better idea how healthy the disk is. Or, use a program such as HDTune, and look at the SMART statistics page. Or any other SMART utility for that matter. In HDTune, I look at Reallocated Sector Count and Current Pending Sector value, as an indicator of health. Running an actual disk diagnostic, one that reads every sector, will tell you even more. For example, on my current disk... Data field says zero. Current Worst Threshold Data Status Reallocated Sector Count 100 100 36 0 OK Current Pending Sector 100 100 0 0 OK You can get HDTune here, if you want to try it out. But I'd sooner get the hard disk diagnostic for your brand of disk first, as it's a more thorough test. The HDTune is for a quick check - if I saw severe trouble, like a high Current Pending, the HDTune would be telling me to back up immediately. I made a mistake before, where I ignored trouble signs, and decided to do a backup the next day. And when I turned on the computer the next day, it was dead (bad drive). Lost all my data. Now, if I see trouble, I keep the power on the PC, until the backup is complete, and then I can go to bed. (Gives you SMART statistics, if available from the hardware) http://www.hdtune.com/files/hdtune_255.exe Disk diagnostics can do both read testing, or read/write testing. Usually the diagnostic will warn you, if some choice in the menu, is destructive. Just use common sense. The tools I use here, as far as I can recollect, are read-only testing, and there isn't a write option. But since there are different brands of disks, and different diagnostics, it pays to keep your eyes open. Don't be in too much of a rush clicking things. Oh, and backups are good, in case nobody has mentioned that already. You should keep a good disk, external to the computer, perhaps USB connected, to keep your data safe. The fact we're having these conversations, you should have a backup in hand. And hurry off to the store, if you don't have a good disk to put it on... Paul I really appreciate the effort all of you have exhibited to help me out with my problem. |
#21
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"NTLDR IS MISSING" (Win XP-3)
On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea
wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. On Wed, 02 May 2012 10:03:28 -0400, Paul wrote: Barry Bruyea wrote: On Tue, 01 May 2012 09:13:48 -0400, Paul wrote: David H. Lipman wrote: From: "Barry Bruyea" On Mon, 30 Apr 2012 17:29:11 -0500, VanguardLH wrote: Thanks for all the advice. I took the side panel off and reset all of the cables and it booted great, yesterday. It didn't boot again this morning and I did the SATA cable thingy again and it booted fine. I'm going to replace the cable today to see if that helps. The cable is a Red Herring. The fact that NTLDR isn't loading periodically is a logical issue not a physical issue. Otherwise you would have received a message indicating that the OS wasn't available to boot from. It isn't seeing a dile not that it isn't seeing the hard disk at all or the OS. The chances are you have a disk issue concerning the file structure or something like that. The first course of action is the "CHKDSK /F" I wrote earlier. The second would be to run the manufacturer's hard disk dioagnostics. Western Digital - WD Diagnostics SeaGate - SeaTools IBM/Hitachi - Drive Fitness Test (DFT) Dave, be aware that first-generation SATA cables, have no retention feature. Back when they first came out, SATA cables were falling off. To stop that, sometimes another cable can help. Don't dismiss the cable issue that easily. To give another example, you can actually pull the entire SATA connector right off the motherboard :-) Some were so cheaply made, they won't stay put, and will rip right off. But to the user, that causes a more obvious issue than the "loose cable" thing. As you say, that probably isn't Barry's issue, but there can be storage problems caused by the loose cable thing. The cables I have here, aren't the greatest, but they have a "compression" or dimple feature, that applies compressive force, so the cable doesn't fall off quite like the first-gen ones did. You can also get connectors and cables, with matching metal retention features, which are a much better design. I don't have any of those. (And that's not ESATA either, that's for inside the computer. For some of the retention schemes, the two ends have to be designed to match, for the retention to work well.) It's too bad the SATA committee did such a poor job on their first try. There wouldn't have been nearly as much variation in cable design, if their first design was the right design. Paul You may have something here. I bought a new cable yesterday and installed it, but this morning the computer didn't finish booting and went to CHKDSK, ran through the process and rebooted. After the complete reboot and restarted the computer and it stopped dead. I went in, pulled the cable, reset it and the computer booted OK. I'm not sure where to go at this point. Can the socket for the SATA cable be pulled out? And be replaced by a new (better) connector and cable? Run the disk diagnostic. There's more to this than the cable. Your symptoms don't match just a cabling problem. ******* My purpose in mentioning cabling, is for the sake of completeness. If you work on a system, which had first-generation SATA cabling, this kind of thing was more of a problem. As a troubleshooter, you shouldn't dismiss the cabling entirely, unless you've checked it and found it in good working order. The cable should have "retention force" and resist attempts to disconnect the cable. The cable should also be cosmetically perfect, no bends or kinds, as bending the cable will damage it electrically (increased error rate). If you run the disk diagnostic, you'll have a better idea how healthy the disk is. Or, use a program such as HDTune, and look at the SMART statistics page. Or any other SMART utility for that matter. In HDTune, I look at Reallocated Sector Count and Current Pending Sector value, as an indicator of health. Running an actual disk diagnostic, one that reads every sector, will tell you even more. For example, on my current disk... Data field says zero. Current Worst Threshold Data Status Reallocated Sector Count 100 100 36 0 OK Current Pending Sector 100 100 0 0 OK You can get HDTune here, if you want to try it out. But I'd sooner get the hard disk diagnostic for your brand of disk first, as it's a more thorough test. The HDTune is for a quick check - if I saw severe trouble, like a high Current Pending, the HDTune would be telling me to back up immediately. I made a mistake before, where I ignored trouble signs, and decided to do a backup the next day. And when I turned on the computer the next day, it was dead (bad drive). Lost all my data. Now, if I see trouble, I keep the power on the PC, until the backup is complete, and then I can go to bed. (Gives you SMART statistics, if available from the hardware) http://www.hdtune.com/files/hdtune_255.exe Disk diagnostics can do both read testing, or read/write testing. Usually the diagnostic will warn you, if some choice in the menu, is destructive. Just use common sense. The tools I use here, as far as I can recollect, are read-only testing, and there isn't a write option. But since there are different brands of disks, and different diagnostics, it pays to keep your eyes open. Don't be in too much of a rush clicking things. Oh, and backups are good, in case nobody has mentioned that already. You should keep a good disk, external to the computer, perhaps USB connected, to keep your data safe. The fact we're having these conversations, you should have a backup in hand. And hurry off to the store, if you don't have a good disk to put it on... Paul I really appreciate the effort all of you have exhibited to help me out with my problem. |
#22
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"NTLDR IS MISSING" (Win XP-3)
From: "Barry Bruyea"
On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. It isn't the cable and CHKDSK and SeaTools passed the disk. That's a tough one... I'll have to think about this one. -- Dave Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk http://www.pctipp.ch/downloads/dl/35905.asp |
#23
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"NTLDR IS MISSING" (Win XP-3)
"Barry Bruyea" wrote in message
... On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. Failing with what you have checked here below is the 10 reasons for the NTLDR issue.I would check each one against your error. I have seen this error many times posted and usually it is number 8 which caused it for most. 1.. Computer is booting from a non-bootable source. 2.. Computer hard disk drive is not properly setup in BIOS. 3.. Corrupt NTLDR and NTDETECT.COM file. 4.. Misconfiguration with the boot.ini file. 5.. Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32. 6.. New hard disk drive being added. 7.. Corrupt boot sector or master boot record. 8.. Seriously corrupted version of Windows 2000 or Windows XP. 9.. Loose or Faulty IDE/EIDE hard disk drive cable. 10.. Failing to enable USB keyboard support in the BIOS. - Peter Please Reply to Newsgroup for the benefit of others Requests for assistance by email can not and will not be acknowledged. This posting is provided "AS IS" with no warranties, and confers no rights. http://www.microsoft.com/protect "Barry Bruyea" wrote in message ... On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. |
#24
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"NTLDR IS MISSING" (Win XP-3)
Barry Bruyea wrote:
On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. So what can we observe then ? http://technet.microsoft.com/en-us/l.../cc977213.aspx On my machine, if I copy the MBR (sector 0) of the disk, it has messages like this. The 440 bytes of code in the MBR, can be repaired with FIXMBR, which should not change the primary partition table entries coming just after it. The 440 bytes of code, just before these messages, looks for the boot flag on one of the partitions, to determine which is the boot partition. Invalid partition table. Error loading operating system. Missing operating system. In the partition corresponding to C:, I'm supposed to be able to find these messages in the Partition Boot Sector. This is a sector (or sectors) at the front of the partition, before the file system proper begins. The Partition Boot Sector is placed there by commands such as FIXBOOT (available from recovery console). A disk read error occurred. NTLDR is missing. NTLDR is compressed. I can find "NTLDR is missing", at byte address 0x7E00 area of the disk. Converting that to sectors, that's sector 63. Allowing sectors 0..62 to hold MBR and 62 sectors of slack, that implies my partition boot sector is very near the beginning of my FAT32 WinXP partition. The actual "NTLDR is missing", is at 0x7FAE. That might be slightly different than how and where, an NTFS partition stores it. But I could find it relatively easily, by copying a portion of the raw sectors on the disk, with "dd". For security reasons, "dd" was not allowed to copy that area, relative to the beginning of C:, and instead, I had to tell it to copy Partition0, which is relative to the whole disk. http://www.chrysocome.net/downloads/dd-0.5.zip Another way to examine that, is with TestDisk. Using the option in the interface called [Boot], you can eventually get to examine what the tool thinks is the partition boot sector. For some reason, the hex editor in here, traverses about three 512 byte sectors, when looking in that area. http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step http://www.cgsecurity.org/wiki/TestDisk_Download The only problem with that tool, is the number of steps to get down there for a look. And in this case, I don't think it really helps anyway, except to satisfy curiosity. This is my partition boot sector and backup boot sector. Notice my backup boot sector is not valid, and I can't remember the last time I actually found the backup boot sector to be valid. I don't know what step was supposed to put valid info into it, but it's never seemed to work. http://img528.imageshack.us/img528/4...irstsector.gif Since my partition is FAT32, I'm guessing that's why I don't have the same error messages as the article I used above to get the three lines that are supposed to be in a PBS. It's possible NTFS and FAT32 don't have exactly the same partition boot sector (because the file systems are different, and finding files would require different code). ******* So that's where the "NTLDR is missing" could come from. And then we need a mechanism to make NTLDR actually go missing... And then, come back again. Paul |
#25
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"NTLDR IS MISSING" (Win XP-3)
On Thu, 3 May 2012 09:11:57 -0400, "Peter Foldes"
wrote: "Barry Bruyea" wrote in message .. . On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. Failing with what you have checked here below is the 10 reasons for the NTLDR issue.I would check each one against your error. I have seen this error many times posted and usually it is number 8 which caused it for most. I can't dispute what you are saying about No. 8, but given the Computer stops dead even before the initial boot screen has completed, I find that hard to understand. Previously I had asked if the SATA socket can be removed and didn't get an answer. I'm not clear if it is soldered to the main board, or removable, as I keep coming back to the cable problem. 1.. Computer is booting from a non-bootable source. 2.. Computer hard disk drive is not properly setup in BIOS. 3.. Corrupt NTLDR and NTDETECT.COM file. 4.. Misconfiguration with the boot.ini file. 5.. Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32. 6.. New hard disk drive being added. 7.. Corrupt boot sector or master boot record. 8.. Seriously corrupted version of Windows 2000 or Windows XP. 9.. Loose or Faulty IDE/EIDE hard disk drive cable. 10.. Failing to enable USB keyboard support in the BIOS. - Peter Please Reply to Newsgroup for the benefit of others Requests for assistance by email can not and will not be acknowledged. This posting is provided "AS IS" with no warranties, and confers no rights. http://www.microsoft.com/protect "Barry Bruyea" wrote in message .. . On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. |
#26
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"NTLDR IS MISSING" (Win XP-3)
On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. A loose power lead, or faulty power supply could also be the cause. |
#27
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"NTLDR IS MISSING" (Win XP-3)
Peter Foldes wrote:
"Barry Bruyea" wrote in message ... On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. Failing with what you have checked here below is the 10 reasons for the NTLDR issue.I would check each one against your error. I have seen this error many times posted and usually it is number 8 which caused it for most. 1.. Computer is booting from a non-bootable source. 2.. Computer hard disk drive is not properly setup in BIOS. 3.. Corrupt NTLDR and NTDETECT.COM file. 4.. Misconfiguration with the boot.ini file. 5.. Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32. 6.. New hard disk drive being added. 7.. Corrupt boot sector or master boot record. 8.. Seriously corrupted version of Windows 2000 or Windows XP. 9.. Loose or Faulty IDE/EIDE hard disk drive cable. 10.. Failing to enable USB keyboard support in the BIOS. http://www.computerhope.com/issues/ch000465.htm 1. Implies the BIOS is selecting the wrong disk. But the MBR on that disk, points to a partition which has the boot flag set, and that partition also happens to have a partition boot sector (but none of the files needed for booting). Then later, the BIOS selects the correct disk ? 3. Corrupt, but then later uncorrupt. Hard to explain, as a file system issue. 4. Like an ARC path problem. But then, how does it correct itself ? I'm having trouble making a credible theory from those. Malware can certainly do anything it wants, but that's a pretty lazy answer :-) Paul |
#28
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"NTLDR IS MISSING" (Win XP-3)
From: "rb"
On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. A loose power lead, or faulty power supply could also be the cause. A loose power lead would lead to "disk not found" or "OS not found" type messages and a faulty power supply would cause the hard disk to fail and would also cause other OS related malodies like lockups and instantaneous reboots. -- Dave Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk http://www.pctipp.ch/downloads/dl/35905.asp |
#29
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"NTLDR IS MISSING" (Win XP-3)
From: "Barry Bruyea"
We need to know MORE about this system. What is the Make and Model of this system and what is the BIOS version. -- Dave Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk http://www.pctipp.ch/downloads/dl/35905.asp |
#30
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"NTLDR IS MISSING" (Win XP-3)
Surely, if the problem is [still] that the OP receives the errormessage:
NTLDR IS MISSING... then, is it going to be the result of faulty cabling, internal connections (SATA / IDE / or otherwise) or anything else which results in any disk [storage volume] failing to be enumerated properly (except for the disk containing the system or boot volume)... My thinking is this; if it were any of those things, how are you left with the "NTLDR" error message? The system looks for the boot-loader file: NTLDR, because the code contained within the bootsector of the active boot-volume ( normally; physical disk0 partition0 )! Ergo, if the boot-drive was failing / failed, then how would it know what boot-files to load? If you replaced the operating system on the same computer, to Win98, and if the same problem occurred, it would tell you ; Invalid system disk Disk I/O error Replace the disk, and then press any key ....instead of ; NTLDR is missing or corrupted...(etc.,) == Cheers, Tim Meddick, Peckham, London. :-) "David H. Lipman" wrote in message ... From: "Barry Bruyea" On Wed, 02 May 2012 19:25:29 -0400, Barry Bruyea wrote: I downloaded the Disk Diagnostics program from Seagate and all of my disks passed. It isn't the cable and CHKDSK and SeaTools passed the disk. That's a tough one... I'll have to think about this one. -- Dave Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk http://www.pctipp.ch/downloads/dl/35905.asp |
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