Some ways to clean a computer hard drive include deleting temporary files and reducing the amount of space reserved for a system restore. The Windows Disk Cleanup utility lets users delete temporary and unimportant files from their computers.
Users can access the Disk Cleanup tool by right-clicking a hard drive in the Computer window and selecting Properties. In the General tab, click the Disk Cleanup button, select the file types to delete, and click the OK button to delete the files.
To reduce the amount of space reserved for a system restore, right-click Computer, and select Properties. Click System Protection. Select the Configure button, reduce the maximum disk space usage and click the OK button.