Thanks for posting that I'll make sure to try the 24 hour method with the jumper connected and no power going to the mainboard. I'll also press the cmos button a couple of times when I do plug it in...

Greetings everyone this is my first post!

I have a MSI Z77-G45 Main Board and I forgot my password for the BIOS. I'm sure it's UEFI because I have tried to remove the battery for one hour as well...