I got notice that my computer was going to be "updated". I was puzzled because I had just gotten the latest Windows update a few weeks ago. After this new "update" my computer was altered a lot. The wall paper was gone, the size of desktop icons changed, my taskbar items had been removed and replace with some bs. When the machine first booted up, I was taken to an MSN browser, which is awful. I tried to open Firefox but was unable to do so, and it would no allow me to put Firefox on the task bar (it gave me the red circle with the cross bar). Instead, it kept taking me back the MSN browser. I gave up trying clean up the mess and restored my computer to a previous date. This happened once before a month or so ago. What is happening? How can I prevent this from happening again.