Windows 10 new install uefi p1. 20

Hello. I search the internet and this forum but for me, there is no clean answer. So I ask boldly here and hope to get a straight answer.

My motherboard is Asrock h97 pro4. In uefi screen it states P1.20. I understand that when installing windows 10 i have 2 ways: bios and uefi. But uefi must be 2.0.

So, should i install with bios or with uefi?

Should I upgrade the uefi to 2.0?

What do I gain if instaling with uefi vs instaling with bios?

Thankyou!

I never upgrade motherboard bios. Is it safe? Should i do it myself or should i go to an it specialist? Is waranty void if i upgrade the bios?

It's more or less bomb proof doing a upgrade to the BIOS and it won't effect warranty if it gives you the option save the old BIOS do so first

So, practicaly i am safe doing it. Ok. Still, just for my knowledge. What if the upgrade is not succesful. Can i broke my mb? What can happen at worse?

Sorry for insisting. I never done a bios upgrade and in my head this is a dangerous thing. I just want to clear my head with infos i can understand.

Mine sure don't have dual bios. Ok. Thanks for help

eperdos said:

Mine sure don't have dual bios. Ok. Thanks for help

It has Crashless Bios though AFAIK ...... perhaps check out AsRock site if you are worried.

And

If you encounter problems while updating the new BIOS, DO NOT turn off your system since this corrupt BIOS might cause your system failed to boot up. Just repeat the process, and if the problem still persists, update the original BIOS file. If the Flash Memory Writer utility was not able to successfully update a complete BIOS file, your system may not be able to boot up. If this happens, your system will need service.

I've flashed probably 20 bios upgrades over the years. Never had one go bad. Of course, unless it is a laptop or you have an uninterruptable power supply you can't do anything if the power goes out. If you are doing a laptop or do have a UPS, make sure the batteries are fully charged.