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I have an XP system that reports "CHKDSK discovered free space marked as allocated in the volume bitmap" when CHKDSK is run from the normal XP environment or from command-line safe mode.

When I schedule a CHKDSK /F and it runs on restart, it finds no errors.

The next time the system is runs CHKDSK in normal XP or safe mode, the same error is reported.

I saw an article that points to this KB, but I didn't find anything helpful there.

I noticed that the stats report "65536 KB occupied by the log file". Is there a limit on the log file size?

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Do you see the same behaviour using the /R switch? I know it takes longer, but humour me please. –  user3463 Dec 11 '10 at 4:36

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Microsoft has reported that running chkdsk in the "read-only" mode can return false error indications.

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I've read that elswewhere, but do you have a citation on that? (maybe something on the MS site) ? –  Clay Nichols Dec 17 '11 at 7:22

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