Originally posted by tisenberg
Defrag will only help if you are updating files on the hard drive on a regular basis. Scandisk, just because in general, things can go bump in the night
Yes, but you have to remember that we are all web surfers. The fact that you are on the Internet means you are constantly down-loading new files and, thus, are fragmenting your hard drive. Plus, Windows writes a whole lot of files just for normal operation.
You can go into the properties of your web browser and delete temporary files first, but the drive itself is still fragmented.
I had a user contact me who literally has never installed any new software since she bought her PC, never intentionally downloads stuff (like mp3s) off the 'net, and never "creates" any documents. All she does is surf the web and play solitaire. After deleting her temporary Internet files, it still took took over two hours to defrag her system.
Once you begin writing to the drive, the files you write and the files Windows creates will become fragmented. The original OS and Application files should stay intact, but the other stuff will fragment.
Windows 2000 & XP are both based on the NT engine. In the early days, MS didn't admit that NT fragmented. Later they licensed Executive Software's Diskeeper and repackaged it as the new Defragmenter.
I'd do it at least once a month. It'll take longer the first time, but the subsequent runs will be faster.
Defragging extends the physical life of your hard drive, as the read/write heads have to be moved around more to access a fragmented file than they do for a contiguous file. That's the "chicka-chicka-chicka" sound you hear coming from your computer when you are doing stuff. It's a mechanical actuator arm, and it will eventually go "chicka-chicka-THUNK". Defragging postpones that eventuality.
HTH,
Steve