Problems with antivirus software. How do I check there aren any viruses?
Trend micro housecall is a free online virus checker that is very good. It downloads some files then scans your system, all of which can take a while. But it doesn’t install onto your machine or copy your files anywhere. This means you always get an up to date scan (i.e. all the libraries etc are current) but also means you get no ongoing protection. It sounds like it would be very useful in your situation though. Housecall can’t guarantee that it will catch 100% of anything simply because no software can. But tests I’ve seen in PC World rank it highly and it will do as good as or better than any other virus checker. It’s certainly a good addition to anything other software you’re using and would be a good start to check out your problems.