Reset NVRAM from windows

Hello,

I've been dualbooting Hackintosh and Windows on the same drive without issues, until windows did an update

It was booting only to Hackintosh, but somehow i booted to windows, then deleted Opencore bootloader from my drive EFI folder, alongside with formatting the Hackintosh partition, as I wanted to delete Hackintosh completly.

This lead my pc to booting straight to Windows, without an ability to go into bios.

I thought my bios was corrupted, so i flashed new version of bios using Gigabyte Q-Flash.

At first, it booted normal, OEM logo with keys guide how to enter BIOS/Boot order

Unfortunately, after restarting pc, it still boots straight into windows skipping whole OEM screen and I'm unable to enter bios anymore

From what i read, I am supposed to clear VMRAM, but I can't figure out how to do it, as I don't have neither OC bootloader on my driver, or OpenCore Hackintosh installation USB

Is it possible to somehow boot with usb only the OpenCore bootloader and clear NVRAM there, or is it possible to do it from Windows somehow?