What?
Permanently delete left-over Windows Temporary Files
Empty all files, in all User Profiles, with extensions .bak, .~, .tmp
Easily specify custom, multiple file-types to search and destroy
Empty Temporary Internet Files and the Recycle Bin
Ability to choose between normal Windows File Deletion or use the Wipe Files feature which first fills each file with hex #00 and then deletes them!

Why?
Helps Administrators delete junk from all User Profiles as opposed to the Windows Disk Cleanup utility that works only with the logged in user
It’s absolutely safe, and tested. Shows you a list of files it’s going to delete before it actually does.
Suppose you want to delete all files in a particular drive with extensions .pw, this wizard makes it easy