SFC /scannow won't complete and gets stuck at 58%. Same results when booting up in Safe Mode. Tried running an error check on boot by right clicking C*drive / properties/ tools/ check for errors and then re-ran SFC. Checked all the services options and they are OK. Checked the CBS log which confirms that there are numerous files that could not be repaired. I am sure that there must be another option than having to do a re-install. Haven't tried the OS repair option which I want to leave as a last recourse. Gone through numerous posts and forums without finding a real solution. TIA. 
My Computer
At a glance
windows 7 ultimate x64
- OS
- windows 7 ultimate x64