My pc won't work default boot device missing or boot failed. Insert recovery media. Then select "boot manager" to choose boot device or boot recovery media. In boot manager comes up with
Fixed! Default Boot Device Missing or Boot Failed in Lenovo Laptop - YouTube
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Lenovo Ideapad, Acer, Default Boot Device Missing or Boot Failed, Error Windows 7, 8, 10, 11 - YouTube
Lenovo Recovery Disk – Guide for Windows XP, Vista, 7, 8, and 10
Effectively Solved: Default Boot Device Missing or Boot Failed