RegSeeker does .. using clean the registry... I deleted all the bad registry files found ...the red ones and green ones and have had no problems so far.... for weeks
The program makes a registry backup for deleted files too!
Try CCleaner and Regseeker
been using these 2 free utilities for awhile
no problems.
http://www.ccleaner.com/
http://www.snapfiles.com/get/regseeker.html
both work great...........
happy speeding