Voted for ccleaner, but that too I rarely use. May b once in a year.
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)
Voted for ccleaner, but that too I rarely use. May b once in a year.