Thanks for this information, dr yes.
Ok, so to get rid of this, what do I need to do, please?
Then, what other (free, hopefully) software would be advised to allow better protection of the laptop? Would MSE perhaps be a better 'all-rounder'? Clearly should have Spybot, Malwarebytes to run regularly but I'm not familiar with other alternatives.
Thank you, guys, I do appreciate your help