I haven't looked in for a while and, since I've been having problems which I haven't been able to fix, I decided to ask for help. It turns out that some of the recent posts have pretty well answered my questions.
I came across something about the Belarc Advisor programme and thought I'd give it a try. It tells me I need to reinstall a Windows update. I've found it on the Microsoft site. It's a security update (Q323255). Where do I save it to - or should I pay any attention to what the programme is telling me?
My PC has never been the same since I installed the latest Norton security stuff so it was interesting to read the comments re Norton on the posting about AV rip-offs. They just confirmed what I was thinking and I'm sure now that an uninstall would be a wise move and I'll have a look at the free programmes recommended.
(Oops - a little Norton box just popped up this minute and told me somebody's had a go. I won't change my mind, though.)