How to Fix ‘BOOTMGR Is Missing’ Errors
Restart the computer.
The BOOTMGR error could be a fluke.
Check your optical drives, USB ports, and floppy drives for media.
If the wrong drive is listed first, you could see BOOTMGR errors.
Reseat all internal data and power cables.
BOOTMGR error messages could be resulting from unplugged, loose, or malfunctioning power or controller cables.
Try replacing thePATAorSATAcable if you suspect it might be faulty.
Perform a Startup Repair of Windows.
This throw in of installationshouldreplace any missing or corrupt files, including BOOTMGR.
Just continue troubleshootingsomething will work.
Write a new partition boot sector to the Windows system.
This will correct any possible corruption, configuration problem, or other damage.
Rebuild the Boot Configuration Data (BCD).
Similar to the partition boot sector, a corrupted or incorrectly configured BCD could cause BOOTMGR error messages.
The following troubleshooting steps are much less likely to help fix your BOOTMGR problem.
Check the hard drive and other drive options in BIOS and ensure they are correct.
revamp your motherboard’s BIOS.
An outdated BIOS version can sometimes cause the “BOOTMGR is Missing” error.
Perform a clean installation of Windows.
This throw in of installation will completely remove Windows from your PC and install it again from scratch.
Replace the hard drive.
Then, install a new copy of Windows.
Assuming it’s not a hardware issue, your BOOTMGR should be fixed.
Windows has only initially started to load when the BOOTMGR glitch notice appears.
Never move, change, orcompressthe BOOTMGR file.
If you see the BOOTMGR is compressed error, you oughta rebuild the Boot Configuration Data (BCD).
This will recreate the BOOTMGR file.
