Hello guys,I'm in a major situation and have no idea what to do. Earlier I updated my BIOS and just to mention I have a brand spanking new desktop, about 3 days old but it still needed updating. I had FSX running smoothly after hours of tweaking and anyway, after the update it asked me to restart the computer, so I did and upon restarting the screen showed 'Loading System' like it normally does before starting up Win7 but instead just below 'Loading System' it showed 'Missing operating system_'.Immediately my heart shrinks and I'm thinking what the heck has happened?! If anyone knows anything and could help me that would help me out so much! My system specs are:Intel i7 2600k unclocked at 3.4ghz8GB 1600mhz DDR3 RAMGigabyte GA-z68MA-D2H-B3 motherboard2TB HDNvidia 580GTXWin7 64bit

Sometimes after performing a BIOS update you need to go back into the BIOS and setup your settings again, in your case your computer cannot find the boot device i.e. HDD with the OS on it. Change the boot device option in the BIOS to point to the HDD with your operating system on it.

Thank you for the quick response however how would I do this? Sorry I just don't want to make any fatal errors.

Hello Haz,Reboot again and look for a bios options such as 'Press F2 to enter setup' or similiar,Press the assigned key used to enter the BIOS, you may need to check your motherboard manual for this, and then load the setup defaults, save and exit and see does this resolve your problem.

I tried the set defaults but that didn't end up working. There might be some hope though because I just went into my BIOS and checked to make sure the ports were recognized with my hard drive and they were but i turned on the raid which wasn't enabled and the computer came with RAID-0 extreme performance and i have seen in some related topics that after an update you should turn raid back on, now instead of a missing operating system, that never came up but i'm having a recovery screen come on saying 'recovering orphaned files' etc and the good news is that before all this the windows7 logo appeared like it would normally. Fingers crossed!

Well, DID you have a RAID originally? If you did, then YES you need to have it enabled. If you did not, then something is not right. Vic

How did you update your BIOS? Did you use an FAT32 formatted USB or was it through a program running through the operating system?

I did it through @BIOS on Gigabyte's website