How to make you pen drive bootable for any windows Today every person knows how to install window. But if anyone say to install window without DVD driver. Today I will tell you how to install window with pen drive. First you have to make your pen drive bootable. Connect your pen drive to your CPU. Insert windows xp cd and download a tool name Wintoflash. Double click on it. Click on list and select windows xp and click on next. Give the path of pen drive and windows xp. After that press Run. Click on License and agreement and press Continue. After that you will receive a massage for format your pen drive. That’s all. Note-You have to select you pen drive as first boot device from boot priority in BIOS.