error message on blue screen during startup and reboot

A problem has been detected and windows has been shut down to prevent damage
to your computer.

UNMOUNTABLE_BOOT_VOLUME

If this is the first time you've seen this stop error screen,
restart your computer. If this screen appears again, follow
these steps:

check to make sure any new hardware or software is properly installed.
If this is a new installation, ask your hardware or software manufacturer
for any windows updates you might need.

If problems continue, disable or remove any newly installed hardware
or software. Disable BIOS memory options such as caching or shadowing
If you need to use Safe Mode to remove or disable components, restart
your computer, press F8 to select Advanced Startup Options, and then
select Safe Mode.
Technical information:
***STOP: 0x000000ED (0x89D842F8, 0xc0000185, 0x00000000, 0x00000000)

Does the BIOS recognise the hard drive?

Unmountable Boot Volume
http://support.microsoft.com/kb/555302

Background information on Stop error code
http://msdn2.microsoft.com/en-us/library/ms797142.aspx

0x000000ED: UNMOUNTABLE_BOOT_VOLUME
The kernel mode I/O subsystem attempted to mount the boot volume and it
failed. This error also might occur during an upgrade to Win XP on
systems that use higher throughput ATA disks or controllers with
incorrect cabling. In some cases, your system might appear to work
normally after you restart.
Source: http://aumha.org/a/stop.htm

Description of the Windows XP Recovery Console
http://support.microsoft.com/default...;en-us;Q314058


--


Hope this helps.

Gerry
~~~~
FCA
Stourport, England
Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~


Daza wrote:
A problem has been detected and windows has been shut down to prevent
damage to your computer.

UNMOUNTABLE_BOOT_VOLUME

If this is the first time you've seen this stop error screen,
restart your computer. If this screen appears again, follow
these steps:

check to make sure any new hardware or software is properly installed.
If this is a new installation, ask your hardware or software
manufacturer for any windows updates you might need.

If problems continue, disable or remove any newly installed hardware
or software. Disable BIOS memory options such as caching or shadowing
If you need to use Safe Mode to remove or disable components, restart
your computer, press F8 to select Advanced Startup Options, and then
select Safe Mode.
Technical information:
***STOP: 0x000000ED (0x89D842F8, 0xc0000185, 0x00000000, 0x00000000)