How to manually Reset or Clear Dirty Bit in Windows without CHKDSK (Microsoft Windows)

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HeelpBook Staff: exFAT has the dirty bit in the VBR (1st Sector), offset 106. Since there are 4 flags in this single byte, you would need to change a bit, not a byte or nibble – or you would damage other flags located in this same offset. It is truly a dirty bit, not a dirty byte.

One mystery that has gone unsolved for the longest time is the dirty [gs bit] on hard drive volumes. Basically a dirty bit is just a 1 hex value located somewhere hidden on the hard drive that Microsoft has never reveal until today.

Windows will check the dirty bit to determine if a volume can contain corrupted files due to hard resetting your Windows [gs computer] with files that are still opened or when you unplug a USB [gs flash drive] that is in the midst of copying a file.

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When the computer boots up with the dirty bit enabled, you will be asked to check the disk for consistency before Windows is loaded. You can skip the disk checking by pressing any key but it will come back again the next time you start up your [gs computer].

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