System recovery options can help you repair Windows if a serious error occurs. To use system recovery options, you'll need a Windows installation disc or access to the recovery options provided by your computer manufacturer. If you don't have either of those choices, you can create a system repair disc to access system recovery options.
Start your computer from a Windows 7 installation disc or USB flash drive
You might need to start, or boot, your computer using the Windows 7 installation disc or a USB flash drive if you want to:
- Install or reinstall Windows 7.
- Recover Windows 7 from a serious error. If your computer won't start Windows at all, you can access Startup Repair and other tools in the System Recovery Options menu from the Windows 7 installation disc or USB flash drive. These tools can help you get Windows 7 running again.
If you use a Tablet PC or other computer with a touchscreen, you might need to attach a keyboard and mouse in order to use Startup Repair and other tools in the System Recovery Options menu.