If you just booted your PC and you get this interface that you cannot skip with “Q-Flash Utility”, what you can do is to remove your keyboard, restart your PC and boot again.
The chances are that the “Q-Flash Utility” bios interface won’t appear anymore and you can boot to Windows or you can actually try to install a fresh new copy of Windows.
“Q-Flash Utility” can be found on pretty old computers (10 years+), that have a Gigabyte motherboard.
After removing the keyboard, see if the computer will skip the bios update window. If it does, try to plug another keyboard (if you have an extra one). The chances are that with another keyboard, it will work just fine.