Hey LG, I haz problemz

[Alexx]

So it's happened 3 times to me in the past where i get a virus my computer fucks up and i just re-install the O.S. to make it work again.. I'm guessing all the times I have re-installed the O.S. my old files somehow backed up or something but I'm worried about deleting them.. my computer space is too full... so Idk if I delete this old windows o.s. file that it might effect my computer in someway that it won't function anymore