I know i mean you get it to run and you get nothing...How rude ;-))
Go to start, run and type:
Click APPLICATION (or it maybe SYSTEM i forget) and under "Source" look for "Windows File Protection". If there are only two entries it means 1) it was started 2) it finished.
If there are any more, than sfc /scannow did something, just double click to find out what it did.