my computer model is from medion and i dont know the model since its quite old… made in 2009 i believe but originally its a 2001 model)mine was refurbished) oh and i tried to reinstall windows vista through my recovery disc while i was reatogope but it said something about vista not being supported. I dont believe a factory reset option is available for my model either. Must i reformat the c drive on reatogope?