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#1
May 7th 17, 10:14 PM
posted to microsoft.public.windowsxp.general
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ntfs and bootsector
I believe I have read on www.ntfs.com if I am correct that the ntfs
bootsector is 16 512 byte sectors. Is that correct? I have looked at this and I see two back to back 512 sectors. Ending with 0x55AA. Then several 512 bytes sections of dat I can't make anything of. Then secveral 512 byte sections or zeros. Do these 16 512 byte sectors have a meaning? Not from what I can see on the www.ntfs.com bootsector data pages. WHat is all those 512 sectors of data after the two 512 byte sectors that are bootsector? Bill 
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#2
May 8th 17, 03:11 AM
posted to microsoft.public.windowsxp.general
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ntfs and bootsector
Bill Cunningham wrote:
I believe I have read on www.ntfs.com if I am correct that the ntfs bootsector is 16 512 byte sectors. Is that correct? I have looked at this and I see two back to back 512 sectors. Ending with 0x55AA. Then several 512 bytes sections of dat I can't make anything of. Then secveral 512 byte sections or zeros. Do these 16 512 byte sectors have a meaning? Not from what I can see on the www.ntfs.com bootsector data pages. WHat is all those 512 sectors of data after the two 512 byte sectors that are bootsector? Bill This site attempts analysis. http://thestarman.pcministry.com/asm...TFSbrHexEd.htm http://thestarman.pcministry.com/asm...er_Sectors.htm "All of the remaining 9 sectors (for a total of 16) are zero-filled (contain only zero bytes)." You can use HxD as a disk viewer/editor, as it has an option for that. https://mh-nexus.de/en/hxd/ Paul
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#3
May 8th 17, 06:27 PM
posted to microsoft.public.windowsxp.general
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ntfs and bootsector
"Paul" wrote in message news  Bill Cunningham wrote: I believe I have read on www.ntfs.com if I am correct that the ntfs bootsector is 16 512 byte sectors. Is that correct? I have looked at this and I see two back to back 512 sectors. Ending with 0x55AA. Then several 512 bytes sections of dat I can't make anything of. Then secveral 512 byte sections or zeros. Do these 16 512 byte sectors have a meaning? Not from what I can see on the www.ntfs.com bootsector data pages. WHat is all those 512 sectors of data after the two 512 byte sectors that are bootsector? Bill This site attempts analysis. http://thestarman.pcministry.com/asm...TFSbrHexEd.htm http://thestarman.pcministry.com/asm...er_Sectors.htm "All of the remaining 9 sectors (for a total of 16) are zero-filled (contain only zero bytes)." You can use HxD as a disk viewer/editor, as it has an option for that. https://mh-nexus.de/en/hxd/ Paul OK so I was right but the zeros must be a "padding". They really don't say anything other than, "We're here". Bill
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#4
May 15th 17, 11:48 AM
posted to microsoft.public.windowsxp.general
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ntfs and bootsector
SNIP
This site attempts analysis. http://thestarman.pcministry.com/asm...TFSbrHexEd.htm http://thestarman.pcministry.com/asm...er_Sectors.htm "All of the remaining 9 sectors (for a total of 16) are zero-filled (contain only zero bytes)." You can use HxD as a disk viewer/editor, as it has an option for that. https://mh-nexus.de/en/hxd/ Paul OK so I was right but the zeros must be a "padding". They really don't say anything other than, "We're here". Bill Hi Bill, I know more about FAT32 than NTFS. The 16 sectors are two "clusters" (allocation units). NTFS cluster size is 4096 bytes (8 sectors). The smallest hard drive space allocated is a cluster. Example, a one byte size file will use one cluster of hard drive space. John
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