Complete System Tuneup is an all-in-one freeware utility which allows the user to enable / disable startup items, clean system temporary files whether they are internet, recycle bin files or cookies, recent items list, error reporting files, etc.
It also provides a faster access to the Windows system tools like Disk Cleanup, Disk Defragmenter, System Restore, Performance Monitor, etc.
Complete System Tuneup was created to assist the average computer user in maintaining their Windows PC.
Download Page : Complete System Tuneup.
Do note that I have not tried this utility. Best to always create a system restore point first!