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#21
What I see there is 1.4MB free space of a 640GB drive, this certainly causes many problems.
What may help is moving a programs folder to a different drive if possible, this should not cause problems unless the program is 1 of the startup programs.
The recommended free space is 15% of the size of the hard drive, in your case that is 96GB.
Somehow you need to remove files/folders from the drive and try chkdsk again.