The BOOTMGR problem can be repaired via the OS installation medium. It simply makes the computer reboot and go through the boot sequence until it meets the BOOTMGR requirements that caused the same error. The problem with the simple instructions to restart the computer with Ctrl+Alt+Delete is that it will not fix the problem.

The message displayed is “BOOTMGR is missing, Ctrl+Alt+Delete to restart” along with a blinking cursor. When this occurs an error from the Boot Manager appears during the machine’s startup sequence. This process is essentially the operating system boot loader that loads the operating system kernel and device drivers that are in the boot-class.Small changes can easily corrupt the BOOTMGR configuration on Vista, Server 2008, and Windows 7. BOOTMGR runs the “winload.exe” process in order to do this. It finalizes the steps in booting the computer and loading the Operating System by looking for the active partition in which Boot Configuration Data is stored. The BOOTMGR (Windows Boot Manager) is part of Microsoft Windows Vista, Windows Server 2008, and Windows 7.

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