Lenovo-Y50-EFI-Network-Boot-Failed - English Community - LENOVO COMMUNITY
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Fixed – Default Boot Device Missing or Boot Failed on Lenovo/Acer
Effectively Solved: Default Boot Device Missing or Boot Failed
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Default Boot Device Missing or Boot Failed" Error - Windows 8 & 10 - Lenovo Support NG
Default Boot Device Missing or Boot Failed, insert recovery media and hit any key, Lenovo Ideapad - YouTube
Lenovo Y540, keep getting this error every 2 or 3 weeks, Default Boot Device Missing. After restarting, gives a BSOD "WHEA Uncorrectable Error" then after restarting again, everything is fine. Both SSD