In fact, my AVG was infected.
Ohhhhhh. I didnt think that could happen
Ohhhhhh. I didnt think that could happen
Anything is possible. That's why it is a good idea to have a "CLEAN" bootable CD with various system and security tools that you can use to boot the system, and scan for virus' and do other system functions without running the risk of using tainted tools.
Sorry, I've probably just complicated your computing experience even more, but the one's who told you that using computers was easy and without risk, were lying.
Using a computer is no different than power tools, firearms, playing around with electricity, gas, heavy machinery, or any other complex and/or dangerous system.
Know the rules, learn the pitfalls and safety procedures; protect yourself.