Windows not recognising a bootable usb at the time of booting

ashbstefin

Prominent
Jul 6, 2017
1
0
510
I have some problem with booting my Windows XP. So i was trying to repair windows. But it was too old and i dont have its cd. So i downloaded an iso file and converted and wrote it in usb with PowerISO app. Still it is not showing to repair in its boot menu