Hello, lately I have a problem with my computer it comes up with errors like vprot.exe, my AVG stop working, says local temp is unreadable, my steam and minecraft don't work and I can't change "reselation" on screen because it don't find that app? Please help!

Sounds like you might have let in some nasty malware. Download and install this: Malwarebytes : Malwarebytes Anti-Malware removes malware including viruses, spyware, worms and trojans, plus it protects your computer (http://www.malwarebytes.org/products/malwarebytes_free/)

Running it in Safe Mode is your best bet.