Ever since I got my Ubuntu notebook computer, I can't fail to notice how fast it starts up (and shuts down) compared to my Windows Vista notebook. Other than the system itself, the virus program seems to take more and more time as it checks for seemingly millions of possible virus attacks. More and more viruses are added each minute, and there will come a time when it takes hours to check them all. At that point Windows will have died, or at least its users will get too angry to use it.
That doesn't even count the many rather pesky and time consuming upgrades of Vista and the virus programs. Worst of those are the once that insist that the computer be rebooted! It takes my Vista machine close to five minutes to do so.