unmountable boot volume: chkdsk doesnt work!!

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Beta member
please advise.

ive downloaded the 6 floppys to get into the recovery console.

followed the instrctions to: chkdsk /r

pc then states: AUTOCHK.EXE could not be located in either the startup directory or the cd rom drive.

type the full path (including drive letter for the location of autochk.exe

ive also tried: FIXBOOT

The Borg

Baseband Member
Greetings Individual.
Attempt this procedure:


followed by


Restart your computer afterwards.

Enter without quotes.
MBR = Master Boot Record

P.S. We are not responsible for any damage or error that might occur as a (in)direct result of you or anyone else following our advices.


Fully Optimized

Wait wait...you need to do a successful CHKDSK first on the volume you are attempting to boot into...!

UNMOUNTABLE_BOOT_VOLUME is almost always caused by damaged sectors on the Hard Drive. You should always perform a CHKDSK first before anything else.

AUTOCHK.EXE cannot be found because you aren't booting into the recovery console using the Windows XP Setup Disc (which is where the file AUTOCHK.EXE can be found), meaning the vital file needed to do a CHKDSK successfully is not available.

You need to manually locate the AUTOCHK.EXE file in order to do a successful CHKDSK. You can check to see if there is a copy on your PC, or just simply get hold of it. I've taken the liberty of obtaining the file:


Simply click on the link above to download it, save it onto a floppy disk (it is only 500KB or so). Boot into recovery using your floppy disks, perform a CHKDSK x: /R and when prompted to, insert the floppy disk containing the AUTOCHK.EXE file and enter the location. Then let your PC do the rest...!
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