To start off with; I dont think you have a virus it sound more like a driiver problem or something simple but to double check please use this tool from Norton
"Norton Bootable Recovery Tool"
I have it and it works great
install it on the PC then make a USB Flash Drive recovery drive with it; boot your PC to the flash drive and then scan for virus's make sure your PC is online when you scan it.
It should come back clean if it does not it will clean the PC of bad stuff.
whether or not your infected I recommend "Norton Security"
its a really great antivirus I have had it for years and have never been infected with bad stuff.
Please let me know what the scan comes up with and we will go from there.
Edited by 1029rjmenvy17t, 30 August 2015 - 12:24 PM.