As you probably know, you can use Windows XP's Disk Cleanup tool to free up hard disk space by getting rid of all sorts of unused and obsolete files. One of the places that Disk Cleanup checks is the Temp folder, which can be a big culprit when it comes to wasted disk space.
While Disk Cleanup can usually clean out the Temp folder for you, it can sometime get stuck there—especially if the Temp folder is full of files and folders. In other situations, Disk Cleanup inadvertently leaves unnecessary waste in the Temp folder.
Either case requires a manual cleanup. To quickly locate and clean out the Temp folder, follow these steps:
Windows Explorer will immediately launch the Temp folder. Because you just restarted the system, you can safely delete any files and folders that you find there.