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I got this software that requires adobe AIR, I've installed it and I keep getting this corrupt file message: 

AdobeAIRInstaller.exe - Corrupt File
The file or directory C:\$Mft is corrupt and unreadable.
Please run the Chkdsk utility

Not sure what to do and where to find this utility.

Thanks

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The C:\$Mft entity is not a real file, it is an internal NTFS structure called Master File Table which stores information about physical position of all of your files on that volume (it is just a coincidence that the error is displayed by an Adobe software). You can check a volume (and fix any errors encountered) by opening the command shell (Start > Run... or Win+R shortcut), typing in chkdsk c: /f /r and rebooting (as described in this Microsoft KB article).

Also I must note that if you have encountered an error like this you hard drive is probably failed or is about to fail, so backup all important data! Even if it is a software fault, it can corrupt your data as well.

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  • $MFT is a real file. It has a file entry like every other file too. Just look on your hard drive. The same goes for the other »meta«-files in NTFS as well.
    – Joey
    Commented Jun 14, 2010 at 17:41
  • It is not a file in the sense that it is used by internals of filesystem itself, and changing it would affect not only it's contents. Of course, formally you are absolutely right.
    – Catherine
    Commented Jun 14, 2010 at 18:04

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