I can't thank you enough for your complete, concise and easy to follow & understand description of how to perform a "Repair Install" for Windows 7. It worked perfectly & was completed, including fresh updates in about 6 hours.
I had been searching for fixes to several problems for nearly 4 months. It all started when I lost the ability to stream sound from the internet, or play sound in videos downloaded from the 'net using Real Player, even videos downloads prior to the problem appearing. . .all other sound functions worked perfectly.
I then found the System Properties would not show the CPU detail.
The next thing I found was that sfc /scannow would complete with errors it could not fix.
Next thing as that msconfig/system info was unable to run.
I tried all the fixes and all they did was show up other problems & fixed nothing.
Your procedure fixed EVERYTHING. . . . . .
Also I experienced none of the side effects you alluded to in you description, including windows theme. . .worked perfectly in every respect.
The only issue that arose was a warning about iTunes & the need to, I forget the term it used, but I simple switched screens & uninstalled it. . .no problemo!
Please excuse the long winded reply, but I thought it may help the myriad of people out there who are also chasing solutions to these problems.
Again thank you