How to enter BIOS (Win 8.1)?

Question

Windows

I recently reinstalled Windows 8.1 for myself, installed it in UEFI mode from a "blank" ...

Now I can't get into the BIOS (although everything worked on Windows 8.1 before) ...
Info about my PC:

• Motherboard Gigabyte GA-Z77X-UD3H-WB WIFI
  
• OS installed on SSD
  

Tried many options:

1. Special system boot options (shutdown.exe /r /o) I do not have the item "UEFI firmware settings not showing"
   
2. OS boot slowdown
   
3. Clicking at the boot stage on F12, F9, Del does not bring absolutely nothing
   
4. Disable hibernation (powercfg hibernate off command)
   

All this is useless for me...

Answer 1

1. Try pressing Del (or F12, F9) 1 time , not many times.
2. According to your board, googl suggests trying:
a) reset the BIOS settings
b) get a mounted video card and try to enter the BIOS without it
c) disable the HDD, as advised above
d) flash the BIOS to a newer one