[CCleaner disappears!]

1 hour ago, nukecad said:

I'd suggest looking at you McAfee and see if there is any log of it removing/quarantining CCleaner.

I'd also try making sure that your McAffee is up to date and maybe making CCleaner an exclusion in McAfee, at least for a while.
If you are using MB with McAfee then you'll probably already know how to make exclusions.

Whilst it's mostly been Trend Micro that is blocking/removing v5.65, there have also been reports of McAffee doing the same.

With both AV's the reports are that if you update the AV then the blocking usually ends, if not then making CCleaner an exclusion in the updated AV does the job.

(With TM you have to get the latest 2020 version from their webpage, updating from within the programme isn't enough).

Malwarebytes does not seem to be an issue, because it works differently to traditional AV's.

 

I updated McAfee and reinstalled CCleaner successfully.

Thanks for your help. Before installing CCleaner my laptop was dreadfully slow so I wouldn't want to be without it.

[CCleaner disappears!]

Thanks very much for your reply.

I'm running McAfee and Malwarebytes.

[CCleaner disappears!]

Exactly the same thing has happened to me...

The program completely disappeared for no apparent reason so I tried to reinstall it. During the installation process there was an error and the key file would not install.