"Missing operating system"

therock003

Distinguished
Jan 6, 2008
225
0
18,680
Just installed win & on my new System Yesterday. Today i was installing some drivers and run some SSD benchmarks. At last i just completed some windows updates and updated to latest mobo bios with Live Update with @BIOS. When i restarted to complete windows and BIOS update, i now come up with the "Missing operating system" error after POST.

Any idea? Was the BIOS upgrade so harsh? Do i have to reinstall windows again?
 

bdcrlsn

Distinguished
Dec 31, 2007
436
55
18,890
Make sure that the boot device order in your BIOS is correct. When I updated the BIOS on my MSI motherboard, I had the same issue, and it turned out that the BIOS set my storage HDD as the first boot device, and not my OS HDD.