asalam ualaykum mere pc mai win 7 install hai ub jb me format krta hun toh format nh hoti error dtha hai , mai ne jahan se pc lya tha wo bolte hen pc lao hm bios mai seting chnge krenge phr xq instal hogi plz ap meri help karen aur btayen tariqa windows 7 format krke xp instal karne ka aur plz windows 7 format krke dubara win 7 instal krne ka tareqa bh btadn.