A critical bug has not been fixed in the final version of Windows 7. [By Gerrit Grunwald]
According to Ryan Price the error can be reproduced very easily via the command line. As soon as you start the tool "CHKDSK" in conjunction with the parameter "/r" (automatic error repair) and starts a scan of all partitions, you can observe in the Task Manager how the CHKDSK occupies more and more memory and ultimately causes Windows to crash.
Microsoft itself has not yet commented on this problem.