QA #24 How troubleshoot BOOTMGR is missing error

How troubleshoot BOOTMGR is missing error

Question

How troubleshoot BOOTMGR is missing error

After perform bare metal server restore I noticed error during first boot. System didn’t loaded properly and after POST goes into black screen. There was error saying “BOOTMGR is missing Press Ctrl+Alt+Del to restart”. I checked restore logs and seems that process was consistent because no one file was missed. Based on that information I started Operating System investigation. How troubleshoot BOOTMGR is missing error?

How troubleshoot "BOOTMGR is missing" error
BOOTMGR is missing error screen instead of OS loading

Answer

To solve “BOOTMGR is missing Press Ctrl+Alt+Del to restart” error we should follow by procedure:

  1. Boot server from installation media,
  2. Go to Recovery Console to open Command Line window,
  3. Start Diskpart by typing… :) Diskpart,
  4. Now we need to list disks and select proper one where Windows is on by typing: List Disk and Select Disk X where X is correct number,
  5. Do the same for volume. Use List Volume and Select Volume X, where X is a number of volume where Windows is installed on,
  6. Last thing is to type active to mark volume with Windows installation as active.
How troubleshoot "BOOTMGR is missing" error
Diskpart in Command Line opened from Recovery Console

That’s it! After server reboot OS should start with success. Good luck!

How troubleshoot "BOOTMGR is missing" error
Finally system is boooting up

See also

QA #25 Windows Server 2008 R2 booting always into Recovery Console –LINK
QA #26 Error \Windows\system32\winload.exe status 0xc0000428 –LINK