Hi ao1793ZQ
I am Dave, I will help you with this.
1
If your PC is freezing on entering BIOS, then your BIOS may be corrupt, is there a BIOS update available on the Gigabyte website for you motherboard and if there is, do you need to get into BIOS to apply that update, or can that be done from inside Windows?
2
Disconnect your PC from the mains electricity
Open your PC and remove the CMOS battery (looks like a watch battery from the motherboard.
Press and hold the power button on the case of your PC for 30 seconds.
Wait 10 minutes.
Re-insert the battery on the motherboard
Connect your PC to the mains electricity and check if you can then enter BIOS