[Note after healtcheck]

My experience is that on several occasions a malicious registry entry was eradicated by CCleaner.  Tested this prior to and after running a scan by one of the better known anti-malicious programs.  I consider this a fix, I also consider cleaning up any preventable problem before it becomes a problem to be a fix.

[Note after healtcheck]

My business customers have a license, my residential customers may have a paid or free copy.  I don't install it, I only recommend it and use it if it's already installed.  Personally I use the paid for copies.

[Note after healtcheck]

I've been using CCleaner registry cleaner since Win 10 first arrived on the scene.  No issues as of yet and I service hundreds of computers in my business, both residential and commercial. It is fixing things unless you don't want your registry cleaned.

 

[NOT DETECT EXTERN HARDDISC]

I purchased recuva last night, had the same issue as awolfGermany.