Schedule Disk Cleanup to run automatically

Windows 7

1. Open Task Scheduler: Click the Start button, click Control Panel, click Administrative Tools, and then double-click Task Scheduler. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

2. Click the Action menu, and then click Create Basic Task. This opens the Create Basic Task Wizard.

3. Type a name for the task and an optional description, and then click Next.

4. To select a schedule based on the calendar, click Daily, Weekly, Monthly, or One time, and then click Next.

5. Specify the schedule you want to use, and then click Next.

6. Click Start a program, and then click Next.

7. Click Browse, and, in the File name box, type cleanmgr.exe, click Open, and then click Next.

8. Click Finish.

Windows Vista

1. Open Task Scheduler: Click the Start button, click Administrative Tools, and then click Task Scheduler. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

2. Click the Action menu, and then click Create Basic Task.

3. Type a name for the task and an optional description, and then click Next.

4. To select a schedule based on the calendar, click Daily, Weekly, Monthly, or One time, and then click Next.

5. Specify the schedule you want to use, and then click Next.

6. Click Start a program, and then click Next.

7. Click Browse, and, in the File name box, type cleanmgr.exe, click Open, and then click Next.

8. Click Finish.

Windows XP

1. Click Start, and then click Control Panel.

2. Click Performance and Maintenance.

3. Under or pick a Control Panel icon, click Scheduled Tasks.

4. In the Scheduled Tasks window, double-click Add Scheduled Task.

5. In the Scheduled Task Wizard, click Next.

6. Scroll down to Disk Cleanup in the list of Applications, click it (to highlight it), and then click Next.

7. Under Perform this task, click Weekly, and then click Next.

8. Set the time and day of the week you would like to run Disk Cleanup. For best results, choose a time when you're typically at your computer so you can provide any required input. Click Next.

9. Type your password in both the Enter the password and Confirm password boxes, and then click Next.

10. Click Finish.