Failed while updating boot sectors disk
Step five: Enter the following commands in order, changing the disk number to the disk number listed for your USB drive.
Warning - the following commands will erase everything on your USB drive or the disk you select.
How to create a Windows 7 System Recovery USB flash drive Step one: If you do not have a DVD drive, download the appropriate Windows 7 Recovery Disc image from Here.
You will need a torrent client for this step, such as µTorrent.
If you do not have a Windows 7 Installation DVD however, you can alternatively use a Windows 7 System Recovery Disc, which we will show you how to create further down in this article.
If by chance a problem is detected in one of your Windows installations at this initial stage, the system may also ask you if it can try to repair the problem automatically.Step two: After the installation or recovery disc loads, if prompted, select your language settings and then continue.If you are using the installation DVD, when prompted by the following screen select Step three: The computer will take a moment now to scan itself for any Windows installations, after which you will likely be given a choice to select which installation you wish to repair.Another possible reason for Windows not being detected upon start up is a hardware issue.If your BIOS is unable to detect your system drive, check to make sure all the cables are plugged in properly.