 Recovery Windows 10, 8 and 7 bootloader The first method to fix the bootloader will work with all versions of Windows 10, 8 and 7. Adjust BIOS or UFI settings to boot from a disk at last drive and enter Windows Recovery Environment. Click on Troubleshoot, start up Repair. It is also good for Windows 10, 8 and 7. Go to the Recovery Environment, click Troubleshoot and start Command Prompt. Then enter the command bootrec fix MBR. To the right, Windows must have boot record in the system partition of your hard disk. The third method will work with Windows 8 or 10. As I have shown earlier, go to the Command Prompt, start it in the Recovery Environment. Enter the command disk part, then list volume.