Nvidia - Latest Driver update killed my mouse and keyboard.

[thepolicecall911fordetails]

I recently tried updating my computer to the latest driver software. During the update, I noticed a loss in my mouse and keyboard. I could not type nor use the keyboard to check the status of the update. I left it alone for a while and found that the problem was not resolved. I held down the power button in frustration and found (later after a reboot) that I cannot get passed the log in screen. No keyboard and mouse = no way of entering the password.

I have a NVIDIA GTX 660 Ti and Windows 8.1

I have tried safe mode, system repair, and NOTHING WORKS!

I would use system restore, but for some reason....

ALL MY BACKUPS WERE DELETED!
Please help. I am stuck without options right now....