A friend told me: "My computer startup seems to be taking a long time. And when the hard disk finally stops churning, everything just seems slower than when it was new. Can you suggest any maintenance tips to reduce the startup time and make Windows run faster?"I have this theory that sludge builds up inside a computer over time, much like an automobile engine. After a while, it doesn't start right up like when it was new, it stalls unexpectedly, and performance is sluggish on the (information).