Andrei Lisnic provides some simple Windows security 101:
to keep your Windows machine secure:
- Use your PC with a restricted user account. In Windows XP, create a simple user account in parallel to admin one (with a password of course), and when you need to run a program with admin rights just do a right click and select “run this program as…” and select admin. In Windows Vista/7 turn UAC on to maximum. It might be annoying, but you don’t install programs so often, do you?
- Disable autorun (which is one of the most used sources of spreading viruses)
- Use only trusted sources