I decided to post this in 'General Chat' because it isn't a specific problem that fits into any neat specific problem forum.
I have an elderly acquaintance who is the greatest expert I know at acquiring malware and PuPs. Two or three weeks ago I had his computer, a virtually brand new HP compact tower running 8.1 - I think it is now four months old - and using various tools I cleaned some 6,000 items of malware and PPs off it, and gave it back to him.
Before I gave it back, I surreptitiously changed him over to Firefox, rather than IE, in which I had installed Adblock, put the icons for his bank, his e-mails and one to Google on his desktop and removed the IE icon from the taskbar. I had also set his A/V - McAffee - to scan his system on a daily basis at a time when his computer is likely to be switched on. I also gave him the lecture on 'Safe surfing'. It's like water off a duck's back - got a phonecall from him Monday morning 'My computer's not working !'. I am going to go and have a look at it on Wednesday and fully expect to find more of the same.
Anybody got any more ideas on what I can do to bullet proof this guy's computer, short of cutting his hands off ? I really do not want to spend the rest of my days sorting this computer out every few weeks.