Type Y followed by ‘ Enter’ key and then reboot the system. This command triggers the system to search for Windows installation info in the BCD and asks you to add it when found. All you have to do is type command bootrec /rebuildbcd and press ‘ Enter.’ Using the startup repair disk, via Advanced Startup Options or System Recovery Options, you can use the command prompt to rebuild the BCD. Rebuild the BCD (Boot Configuration Data). Just follow the next troubleshooting technique. The startup repair might fix the issue but if it does not, do not worry. Use Startup Repair option in Windows using a bootable Windows installation or repair drive (CD/USB). Check power cable, SATA/PATA cables connected to the drive for unplugged or loose connections. If you own a laptop, you can skip this step. Reseat all cables connected to your internal hard drive. If your system restarts, go to BIOS and change boot priority order to fix this issue permanently, else, proceed to the next. Disconnect all connected USB storage devices and then reboot the system. Often the ‘ BOOTMGR is missing error’ appears when the system tries to boot from a non-bootable drive connected to the system. Fix the “BOOTMGR is Missing” Errorīelow are a few steps (troubleshooting techniques & methods) that you can follow and fix your PC that fails to boot due to the missing BOOTMGR.Ĭheck all the USB ports for connected storage devices. If you are going through a similar situation, do not worry, this guide will help fix your PC and retrieve inaccessible data from your system that fails to boot due to the error ‘BOOTMGR is missing’.

This vital data is usually stored by users on their system in a single location without taking appropriate backups. This situation could be a nightmare for many as people often store all their data which includes important documents, projects, presentations, files, and pictures of times and places that cannot be relived or revisited.

Windows boot manager missing