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XP- Click on Start, All Programs, Accessories, Command Prompt
Vista & WIndows 7- Click on Start, All Programs, Accessories. Right click on Command Prompt and select Run as Administrator
Type fsutil dirty query x:. This queries the drive, and more than likely it will tell you that it is dirty.
Next, type chkntfs /x x:. The /X tells Windows to NOT check that particular drive on the next reboot. Now manually reboot your computer, it should not do a chkdsk and should take you directly to normal Windows login.
Once Windows has fully loaded, bring up another Command Prompt and enter chkdsk x: /f /r. Reply Y if asked if you want this to happen on the next boot. This should take you through 5 stages of the chkdsk scan on the next boot and will unset that dirty bit. Be patient as this can take an hour or more depending on the size of the hard drive or partition.
Once booted back to Windows, open another Command Prompt and query the dirty bit again by entering fsutil dirty query x: and Windows will confirm that the dirty bit is not set on that drive.
Above from Experts Exchange, though you can no longer view it there for free.
Edited 04/30/2011 to add Vista and Windows 7 information.
Edited by Ztruker, 30 April 2011 - 08:05 PM.
