Bootmgr is corrupt, Computer doesn't recognize the Windows 10 Installation USB-Stick and won't start BIOS/show the Key for it | Frontier Forums
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bootmgr is missing press ctrl+alt+del to restart how to fix || Change boot menu to this problem - YouTube
![Windows 7 fix for bootmgr is missing?? (I activated my disk by accident and now it won't boot up help!) : r/windows7 Windows 7 fix for bootmgr is missing?? (I activated my disk by accident and now it won't boot up help!) : r/windows7](https://i.redd.it/b1nrg6y8mtja1.jpg)