I've seen several threads with comments saying the new chipset drivers are causing extremely long sfc/scannow times. Up to 25 minutes to finish. Normally this takes a minute or two. I personally have not installed them but I've seen comments like this on Overclock.net forums https://www.overclock.net/threads/new-amd-chipset-drivers-revision-4-03-03-431.1797423/#post-2895999...
