Step 1: Press F8 while booting the system to go into the Windows Recovery Menu. Without that, it will be hard to proceed. Please don’t ask where you can download it since we are not at liberty to discuss the sources, where we can find the On some occasions, you may get the Bootmgr is missing error. In such cases you can run the rebuild or repair MBR to fix these issues. http://edvinfo.com/windows-10/dual-boot-repair-tool.html
One of the common reasons why an MBR can get corrupted is due to malware infections. The Windows Club The Windows Club covers Windows 10/8/7 tips, tutorials, how-to's, features, freeware. Home News Windows Downloads Security Edge IE Office Phone General Deals Forum About Repair Master Boot Record (MBR) in Windows 10 / 8 / 7 RECOMMENDED: Click here to fix Windows First and foremost you need a Windows 8 or Windows 7 installation DVD. http://www.digitalcitizen.life/command-prompt-fix-issues-your-boot-records
Created by Anand Khanse. Step 2: Click on Troubleshoot.
Repair Master Boot Record MBR The process is almost same for Windows 10 / 8 / 7. Improper shutdowns can also lead to MBR corruption.