Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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.


share|improve this question

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.

share|improve this answer
$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 Jun 14 '10 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. – whitequark Jun 14 '10 at 18:04

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .