Outdated-An operating system wasn't found. FIXING IT WITHOUT BOOTABLE USB(silent with bad cam angle)Công Nghệ
This is old and raw, here something better:
tl;dr: Don’t boot from your windows partition, but from wherever the ‘Windows Boot Manager’ partition is
Poorly recorded, non commented fix for:
“An operating system wasn’t found. Try disconnecting any drives that don’t contain an operating system.
Press Ctrl+Alt+Del to restart”
Windows update fkd up my SSD win10 because the ‘system boot partition’ was on another disc.
here I just go to bios settings, find what disc is the one labeled “Windows Boot Manager”.
*on windows*It should be the one that has a 100MB partition under This pc(right click) – Manage – Disk Management
Then I change the boot priority, not to the disc with windows, but to the one with the windows boot manager label
If you are on middle of win update madness, this may be needed several times, if you are going to format any disk on the future, make sure to never delete the 100mb partition (or any “system” one)