Use Windows Setup disk/CD-ROM to restart the system to initiate the recovery.Fixing ‘NTLDR issue’ using Recovery Console As fresh new operating system will be installed on your computer, there will be left no kind of BOOTMGR is Missing Error in Windows. In case automatic repair option does not work properly, then you can perform a clean installation of your Windows from scratch after removing the previous Windows. In case you are performing the boot process from a non-bootable device then also you might face the same issue.Physical damage like damaged and faulty SATA cables, hard drive etc is also one of the reason.Corrupt or Bad sectors in your hard disk can also be held responsible for such error.In case you have outdated BIOS or some corrupt or misconfigured files, then there is the probability of such error.While upgrading operating system or hard drives, issues occurring could result in corrupting files.There are numerous forms with which the user can across the concerned error. Alike, corruption of boot manager freezes the functionality of the system’s functionality, similarly, the corruption of NTLDR abstains the OS from loading into the system. In Windows XP, NTLDR does the same job as the Boot manager. BOOTMGR is Windows Boot Manager which helps in loading your operating system files from hard drive when you turn on your system.

Bootmgr is missing windows 7