BIOS Advanced Mode cannot be accessed

[Kaian]

Hi, I seem to have a problem with my BIOS with admin password. After logging in the admin password the easy tweak (main menu) is working normally. But as soon as I click on the Advanced Tweak tab (or press F6), everything freezes. The only thing to do then is to press the reset/power button. Logging in with the guest/user password is completely fine, but I can't config anything. It was in read-only mode.

I've checked, my bios version is up to date, same version with the latest download on the asrock website: P1.40 (14 Nov 2016). When I tried to flash the firmware from internet it said I have the latest one.

I also reset cmos by switching the jumpers but it still had the issue, and the passwords are not cleared. (I couldn't find a password reset jumper tho, only a CLRMOS1, I moved the jumper, left it for ~1 minute then moved it back, before that I unplugged everything as guided by google searches)

 

All of that and the problem is still here. As a noob I don't know what to do and what's causing it. Apart from that everything is working fine. Windows still boot quickly, apps and games still run smoothly.... Since I don't even OC I might as well don't even care... but I really need to enable the "allow to use CPU's GPU" (I want the i7-7700 connects to a second, small monitor so I can chat while I game on fullscreen with my VGA) and to turn off the "Wake-up by USB" or whatever that keeps my keyboard and mouse's LED on even after I turn off my PC. 

 

Or if there is a way to do these 2 things above without the need of accessing the BIOS, please tell me. I don't wanna fiddle with it if I can avoid it.

 

Please help. Thanks a lot.

 

P/S: my system:

 

ASRock B250M Pro4

Core i7-7700

RAM Avexir 32GB Ram (profile 1 - bus 2400 on the easy mode bios page)
GTX 1080 Gigabyte G1 Gaming