c: is dirty, how do I clean?

May 5, 2009 at 02:50:27
Specs: Windows XP
I keep getting the chdsk running at the start-up, never had this before, just goes through 3 phases restarts pc and does the same all over again unless I press spacebar to cancel. How do i solve this problem?

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May 5, 2009 at 04:04:29
The best way is to just let it run through its cycle. After the run through and it still continues on startup open command prompt
type: CHKntfs /X C: press enter

Normally one should be cautious about why chkdisk is trying to run on start up. It is a warning that something is not correct and you need to give it a look!
I would open the command prompt and actually run either
CHKDSK C: /F or /R for repair.

Change Is Good

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May 6, 2009 at 03:22:17
thanks for the advice. I have followed your advice, nothing seems to tell me of any problems. The chkdsk runs stages 1-5, restarts pc after completing and returns to a loop cycle, only way to stop is to press spacebar to by-pass and log-on to my pc.

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May 6, 2009 at 05:31:48
Cause for C: is dirty message:

Chkdsk turned on the dirty bit for two main causes - a software problem caused by improper shutdown of Windows, or a more serious hardware problem that can indicate a failing hard drive.

If your file system is NTFS, you can turn off the C: is dirty bit by following this procedures:

1. Open command prompt.
2. Type in chkntfs /x C:. This will prevent chkdsk from scanning drive C: at startup

To reset it back to normal, again open command prompt and type in chkntfs /d


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