[Troubleshooting] Windows 8.1 won't boot after I updated ASRock UEFI!

firstimepcbuilder

Reputable
Nov 16, 2014
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4,510
I was looking through the BIOS of my ASRock Z97 Extreme4 when I saw an option called 'Instant Flash'. I clicked on it to see what it was, and it told me that there were some updates to my UEFI. I updated them, and now I cannot boot Windows, not even in safe mode. Please help and advise. Can I revert to an old version of the BIOS or anything?
 

firstimepcbuilder

Reputable
Nov 16, 2014
3
0
4,510


Thanks, dude!

What happened was, the BIOS update messed up my boot order. It was trying to boot XP from my old hard drive. When I changed the SATA mode like you suggested, it succeeded in booting XP, and then I realised the problem. All I had to do was change the boot order back and it worked again! Thanks!