yo,exw ena pc me windows 7 64-bit ala mou vgazi sinexia diafora error se psilopalia pexnidia k krasari sto akyro se merika ala.anyway.k rwtaw twra egw: pws 8a gini otan anigw to pc k mpeni sta bios na exw tin dynatotita na epileksw metaksy windows XP k 7?