how to remove OneSafe PC Cleaner..??

it appeared after I updated Logitech Intellipoint driver..

- I don't want it, but it doesn't appear in the list of progs and apps..

- how do I get rid of it?

Try
How To Remove OneSafe PC Cleaner (Virus Removal Guide)

tried Malwarebytes Premium v3.8.3

- it didn't detect anything - the darned thing is still there..
- any other suggestions?

You could try uninstalling what you installed- see if it's gone- then start the reinstall (but don't complete it) and make sure there's no check box for something 'extra'.

What is the source of your driver package? How did you update it? Did you use a driver updater tool?
And do you need to update it?

If it's truly software, I would try Revo-Uninstaller. If it's an actual Virus I would use HitmanPro.

- still there...

- is it still possible to run an offline scan using Defender?

There are lots of guides on how to deal with this.

E.g.
How to Uninstall Onesafe Pc Cleaner "Virus" (June 2019 Update) - Virus Removal

Why not use Google and try some things suggested?
onesafe pc cleaner


This seems to be a non-trivial thing to remove, so tools like Revo - even if you can find a starting point- and only the Pro version supports forced uninstall- may not succeed.

Do you have a disk image created before this appeared? If so, restore the disk image.
Perhaps a restore point might help, but this could be designed to circumvent that.

- sheesh..!!

- also ran a root-kit

- no joy..

- this has become a REAL nuisance..!