BOOTMGR Error Message
There are few ways that the "BOOTMGR is missing" error may show up on your computer, with the first error I have listed being the most common:
"BOOTMGR is missingPress Ctrl Alt Del to restart"
"BOOTMGR is missingPress any key to restart"
"Couldn't find BOOTMGR"
The "BOOTMGR is missing" error displays shortly after the computer is turned on, immediately after the Power