Missing Operating System

[commissioner95]

I did a "Update", System Rebooted, and the error msg on screen say "Missing Operating System"; help immensely appreciated, as much needed work and school info on unit... Thank You in Advance for any and all help

 

[Colif]

On another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB - just a boot disk

See if this helps: https://www.lifewire.com/how-to-rebuild-the-bcd-in-windows-2624508