Luke wrote on Dec 27, 2015, 14:40:
If MSspytech Win10 says NO it IS needed
Or... We could stop using reg cleaners entirely, not because Microsoft recommends it but because they don't really do jack squat these days. Windows Registry is a database. It's a pretty big one, but it's just a database for storing system-wide settings. Cleaning it out won't make your computer run any faster or stop it from crashing, the two big promises reg cleaners make.
Put another way, if you're educated enough to know what they do, you should already know they're nearly useless and potentially dangerous. If you don't know what they do or how the Windows Registry works, then you don't know enough to use them safely. It's as simple as that.