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September 18, 2006
KB920958 and 0xDF disk corruption
During the recent months I've observed a couple of files on my work system becoming corrupted somewhere near the end . The corruption seemed to be always the same - a full cluster filled with 0XDF instead of whatever data used to be there. In my case, this only seemed to happen with RAR archives (-rr), so I've been able to recover the information. Another odd case included the team pic from the F-Secure blog:

which every now and then looks like this:

Today, the corruption happened again so this go me thinking - maybe it's a problem with the disk? A search on Google turned up the sour answer: it is not the disk but KB920958's fault. Uninstalling KB920958 seems to solve the problem. No fix available yet, however, Windows Update kindly offers to install it again.
Well done, Microsoft.
Posted by Costin Raiu at September 18, 2006 1:19 PM