Defragmenting a hard drive is important to the stability and speed of a computer, but it takes a long time to do and you have to remember to do it. You can buy programs to do it for you, but why pay for it when Windows XP will do it for you for free?
Step 1: Go to Scheduled Tasks
First, you need to go to Start>All Programs>Accessories>System Tools>Scheduled Tasks
Step 2: Add a Task
Next, double click on "Add Scheduled Task."
Step 3: Whatever You Want
Then, click "Next" and click on whatever program you want. It isn't important what you choose because we will have to change it later. Click next and enter the title, time, day and frequency of this task. Then it will ask for your password, I read somewhere that you need a windows password for this to work but I'm not sure if this is true.
Step 4: Almost Done
After you have entered your password and clicked next it will say "You have successfully scheduled the following..." On this screen make sure you check the checkbox that says "Open advanced properties for this task when I click Finish." Then click "Finish."
Step 5: Last Step
Finally, change the "Run:" textbox to say "defrag c:" and click "OK." Now when it runs the task it will run "defrag c:" and it will defrag your C drive.
Step 6: Comments
This is my first instructable so please be kind with your comments, but also please be constructive. Thanks!