"unmountable_boot_volume" error message!

[Guest]

yesterday when I was playing a game, the windows suddenly reboot and jump to
a screen telling me to reboot the computer again

I did so but then a screen appear telling me I have 30 sec to select from a
variety of choices, like "safe mode", "start windows normally", etc.

I select "start windows normally" and it jump to the window loading screen.
during this time, the computer restart again, the same choices screen appear
I select "start windows normally" again and it restarts again

the cycle keeps forever......
Then I use another pc to go online to search for solution

the following solution seems the most useful to me but it didn't work:

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q297185

I try to repair the system but when enter the command it said error
Then I type in fixboot, it said a new fix section is created but the problem
won't solve.

I can't even go into the BIOS settings
My pc is sony manufacture, it saids the BIOS settings can enter by pressing
F2/F3

I've tried so many times!!!!!
Someone help me, please!!!!!

 

[Maurice N ~ MVP]

Hello,

See about running CHKDSK from Recovery Console (below).

If you are using NTFS file system on IDE drives with caching enabled.
See MS article 315403
Stop 0x000000ED Error Message When Volume on IDE Drive with Caching Enabled Is Mounted (315403)
http://support.microsoft.com/kb/315403/

If you have ATA-66 - 100 -133 disk controllers, make sure the cables are of the right type (80 wire cables / aka Ultra-ATA IDE cables). There have been several postings on "unmountable boot volume" and they were using the older-type IDE cables.
CONVERSELY, if you have the older IDE connectors on motherboard, use 40-wire cables!

Note also: If you have removable storage like a Firewire device, that may sometimes/somehow contribute to this condition.

Next, recheck master/slave jumpers/settings on all cables to hard drives, CD devices.

Set pc BIOS boot sequence to boot first from CDROM. Boot from XP CD. Get into Recovery Console. It is the second option line on the XP CD main menu: it will say (on screen Welcome To Setup) :
"To repair a Windows XP installation using "Recovery Console" press R .

Login to XP with administrator password.
On your system drive, run "CHKDSK /P". I'd run it twice, just to make sure there are no errors.

At finish, remove CD, restore boot sequence in BIOS, and carefully try Windows login.

The following are some general hints on the problem:
Recommend you see/study this MS article: Article ID: 297185 , titled
"STOP 0x000000ED UNMOUNTABLE_BOOT_VOLUME" Error Message During Windows XP
Upgrade
http://support.microsoft.com/kb/297185/

Note it also does refer to this condition beyond any upgrade process....it may occur after XP has been setup/working.