If your computer has become unresponsive or is infected with a serious virus, you may find your only option is to reinstall the operating system. You can create your own operating system boot disk on a USB flash drive if you no longer have the original boot disk. Setting up the USB drive as a boot disk is an easy procedure, but you first have to make sure the drive is properly formatted. Once the USB drive is prepared, you may also need to change a setting in your computer so it can boot from the drive. Tips Writer Bio
