Try running SFC again two more times to see if it will repair them. If not consider a Repair Install.
The VLC player running up CPU and RAM in Processes (was it playing a video?) is consistent with Display adapter problems which may be solved by reinstalling the driver
, or eventually if necessary the card. But I would also try uninstalling VLC to run with WMP for awhile just to see the difference. It's not so bad. You can always revert.
Here are some other key troubleshooting steps
to utilize the logs and system resources, hardware testing and other approaches leading up to Repair Install or Clean Reinstall with steps to get it perfect. Our installation forum is the top one in the world if needed.