BIOS Update MSI Frozen

Well, I was hoping this would not happen but it did. I followed all the instructions as shown here https://www.youtube.com/watch?v=0Huex38Yrh0 (of course with my motherboard's BIOS download) and once I select the file it just is frozen, no mouse movement, just stuck. What are my options now?

Do I power it down or is that a bad idea, should I just wait it out instead? It seems like this happened to this guy http://www.overclock.net/t/1400718/msi-z87-g45-bios-freezes-when-updating but his BIOS did not corrupt so I hope mine is fine.

I had to update the BIOS because I was having a lot of problems with the computer not restarting etc. etc. and the BIOS is version 6.1 and the latest is 6.6.
 
I've had this happen before on my MSI board. I even spoke with tech support about it. I ended up powering down, and it booted fine. I did have to reinstall a lower version and go back up to the latest to fully correct some odd issues. I ended up figuring out it was my USB keyboard (seriously), so I have to unplug the USB keyboard and use a PS2 keyboard for the BIOS updates.
 


Wow that's really really really weird.
 
If you search you will find other instances of certain USB keyboards interfering with BIOS updates. Heck when I first got my mechanical keyboard my PC wouldn't boot and cleared the CMOS. I had to do a BIOS update just to make my Z97 board work with my USB keyboard.

Even then it was a couple updates before I could actually change options in the BIOS from USB and have them actually save.