umed he ab sab kheriyat se hon ge ap log ki help ki zrorat he me apne computer dell optiplex gx 620 me windows 8 usb se karna chata ho mene usb bootabal kar li he liken computer boot nhi karha computer k sutep me usb k opcation par not preseant lhikha howa he ap batta de k me kis thara usb se windows karo thx