[Xist]

I connected my laptop to the 43" television last week to plan activities for new clients and I couldn't use my keyboard with my desktop afterward. I bought a new keyboard, but couldn't find the old one, so I used the new one with my laptop, and then neither keyboard worked with my desktop!
I tried most of the 8 USB ports!
The Num Lock light was on, but when I tried to find help online everything was about Num Lock and the numeric keypad. I removed that part and everything required me using Windows!
How do you log in without a keyboard?!
With the on-screen keyboard, of course!
Once I was logged in I tried to use each keyboard and noticed some kind of error tone each time that I hit a key. I searched for that and it said to disable Filter Keys.
That did it!
Who turned on Filter Keys?!