I have dual boot but accidentally turned on the fast boot option, so now I can't access Windows.

How can I disable fast boot from Linux or access boot menu since I'm not able to do either at the moment?

I did check some posts about it but didn't find much info on how to fix it. I'm using Windows 10 and Arch Linux.

I can't enter the BIOS settings because it's fast boot -- I have no way of accessing the boot menu.