Can't access bios

[felkupr]

This computer was custom made like 5 years ago. I always were able to access bios. But today I have been trying all day to access bios but I haven't been able.

I don't remember the motherboard model and for some reason in System information is says model not available. Is an Asus mother board and bios version is American Megatrend.
The pc is running windows 10 home edition.

Also sometimes but is rare to happen I get the cpu error that says click F1 blah blah. When I get the error I click F1 but nothing happens and sometimes it returns to normal after turning off the computer for a few minutes.

I want to access bios in order to enable the virtualization option. Any idea?

 

[CountMike]

Did you try resetting CMOS/BIOS ?.

 

[felkupr]

I tried a few things for resetting but none worked it still quickly goes to windows boot. Only thing I havent tried is removing CMOS because it wasn't visible and kinda hesitated in removing stuff from the motherboard.

 

[felkupr]

So I found my motherboard model:
ASUS SABERTOOTH Z77

 

[CountMike]

Did you try taking battery out, go to CLTC, move to the right 2 pins and leave all that for some time, maybe 15 minutes ? All of that with power right out of course.

 

[felkupr]

Havent tried to get battery out, in order to do it I need to practically dissemble everything. The motherboard is protected with some plastic that covers the battery.

Update: I was able to reset the CMOS like was advised here after that I was able to enter bios