Agreed. The defrag never made one iota of difference in speed.

The best thing I have ever done for speed (this is a four year old XP) is to switch to the Chromium browser, as recommended to me by folks on this forum.

For reasons that I cannot define, this browser does not slow the machine down after it has been used for one week. Both Firefox and Chrome will suck up nearly 1GB after some extensive use. Chromium doesn't appear to do the same. Chromium is a bit unstable and crashes if you load up a couple of tasks at once. However, it knows that it crashed and it recovers from the crash in about three seconds and reloads all the tabs in less than 10 seconds. I'm quite pleased with it.