When typing I on occasion I sometimes have hit a filter key which in turn disabled all of my keyboard, this time I just hit a bunch of keys and somehow it started typing again but I don't want this to keep happening how do I disable my filter keys?
Here is a link showing you how to turn them off.
http://www.techrepublic.com/blog/windows-and-office/quick-tip-disable-the-sticky-and-filter-keys-in-windows/