Andy Burns wrote:
In theory? I'd say handwavy99%/handwavy of Win10 installs don't
have CCleaner.

IMHO 'cleaner' tools are like those bottles of fuel additive sold in motor
parts shops. They're supposed to make your engine 'more efficient', but you
have to ask why the manufacturer sold you something less efficient in the
first place. However they keep people amused who can't resist the urge to
tinker.

Theo