Type %temp% in Start -> Run. This opens your temporary folder and then you can erase it easily.
For Expert Users-
Type gpedit.msc in Run
Select -> Computer Configuration/Administrative Templates/Windows Components/Terminal
Services/Temporary Folder Then right click "Do Not Delete Temp Folder upon Exit” Go to properties and hit disable. Now next time Windows puts a temp file in that folder it
will automatically delete it when it’s done!
Note: GPEDIT (Group Policy Editor) is only available in XP Pro.