PC to AVR

Good day, my new pc wont work if i plug it on a avr but works when i plug it directly on the wall. I tried to use a old avr from my old pc and it made the pc turn on and turn off. Then i bought the same avr but brand new and same thing happned then i bought a really beefy avr a 1000w and same...

If I reinstall windows 8 with a flash drive will it automatically use my product key that's stored in the BIOS or will it wipe it out and make me buy another product key?