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How to Fix BOOTMGR Missing Windows 10 – FIXED 2017 Tutorial
If your Windows PC won't boot and displays the error message "Bootmgr is missing", there are many ways to fix this issue and boot your PC normally.
There are several reasons for this error, but it usually occurs due to corruption of system files on the PC.
The first time you get the "Bootmgr is missing" error and the operating system has not started (you cannot open the desktop), restart your PC.