I never used anything for cleaning Registry, so voted others..
How abt being an option..
Advanced System Care
CCleaner
Eusing Free Registry Cleaner
Glary Utilities
jv16 PowerTools
System Mechanic
TuneUp Utilities
Win Utilities
Wise Registry Cleaner
Other (please mention below)
I never used anything for cleaning Registry, so voted others..
How abt being an option..
I played manually, deleting registry keys...
Also i used to use Advanced Uninstaller Pro to revert back to older registry & used its Registry Cleaner. But playing with registry is always risky and twice it failed on me.
Luckily I had W98 as 2nd OS and was able to backup my data...