I started a driver update (WiFi and Nvidia) it froze the computer. So I re-started and apparently I have (X) amount of time to do some things before it freezes. Apparently the update is still happening in the back round. I don't have a lot of time to do a bunch of terminal typing. Is there something that kills all apps running in a quick efficient manner? The computer has been sitting frozen for 5 minutes, fans humming fast.