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Windows 7: How can I disable the Dirty Bit on a FAT32 volume?

17 Mar 2010   #1
amirams

Windows 7
 
 
How can I disable the Dirty Bit on a FAT32 volume?

Please note that I DON'T need to disable CHKDSK at boot. What I need is to actually remove the Dirty Bit. I have an external drive that is formatted as FAT32 and I want to convert it to NTFS, but every time I run CONVERT I get a message saying that the disk has the Dirty Bit set and cannot be converted. CHKDSK /F does not solve the problem. I don't get any message asking me to run CHKDSK when I boot or connect the disk, which sort of proves that the disk is not actually dirty. (I always remove the disk using "Safely remove hardware").


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17 Mar 2010   #2
Desslok

Windows 7
 
 

Did you try chkdsk /x /f <drive letter of the external:>?

Another option is try the GUI method, right click the drive.
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17 Mar 2010   #3
alphanumeric
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

If you have the data on that drive backed up somewhere else you could just delete the partition and start over with a clean slate. Then creat a new partition and format it in NTFS.
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17 Mar 2010   #4
amirams

Windows 7
 
 

Quote   Quote: Originally Posted by Desslok View Post
Did you try chkdsk /x /f <drive letter of the external:>?

Another option is try the GUI method, right click the drive.
Yes of course I did. CHKDSK (in any syntax, in any form) doesn't do the trick.
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17 Mar 2010   #5
amirams

Windows 7
 
 

Quote   Quote: Originally Posted by alphanumeric View Post
If you have the data on that drive backed up somewhere else you could just delete the partition and start over with a clean slate. Then creat a new partition and format it in NTFS.
Unfortunately I don't have an extra 1TB of free storage (give or take...) to backup everything on the drive.

Isn't there a way to simply clear the bit?
My System SpecsSystem Spec
28 Oct 2010   #6
shadowslash

Windows 7
 
 

Bumping this because I'm in the same situation as this guy... Only mine is not an external but the actual drive containing the OS itself...
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 How can I disable the Dirty Bit on a FAT32 volume?




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