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
6 Easy Ways to Fix the No Boot Disk Detected Error
Boot failure - Bios fix - YouTube
FIX] Overclocking Failed Error Message During Boot
Effectively Solved: Default Boot Device Missing or Boot Failed
EFI Network 0 for IPv4/IPv6 Boot Failed On Lenovo[SOLVED]