Alrighty I opened your thread over here.
So it can be multiple reasons. First
Are you running in safemode? About 90 percent of the times 3rd party programs can conflict with repairs.
Have you ran a
chkdsk /f
?
Now after that what I need to know is what repair are you stuck on?
Next is do you see any CPU usage with the tweaking.exe? Let me know the results