CCleaner's main feature is
its junk file remover, which frees up space on your hard drive by removing unnecessary temporary files, but it also has quite a few other built - in tools, including a duplicate file finder.
Puran Utilities includes many tools like
Junk file remover, Register defragger, registry cleaner, an Uninstaller, Disk Checker, Startup Manager, Empty Folders identifier, broken shortcuts cleaner, duplicate file finder, secure deleter, data recovery tool, and more.
PrivaZer is
junk file, temporary
file, registry cleaner, a history
remover and a privacy cleaner, all packed in one.