TuneUp Utilities™ 2011
Only works free for 15 days, however, its improvements stay, even after uninstalling.
Status & recommendations
The intuitive Start Center with a fresh look and feel gives you complete control and access to the most important tuning steps at a glance.
Get rid of those PC brakes and drop the dead weight in programs: for maximum speed whether working, surfing, or playing!
Gain disk space
Find and remove large resource hogs and annoying data trash to make your PC run even more efficiently.
Fix the most common Windows® problems, scan your hard disk and restore deleted files.
Change the visual appearance of Windows® to match your style and safely modify over 400 Windows® settings.
Professional users have direct access to 32 optimization tools TuneUp Utilities™ 2011 offers.
It does much more then what I pasted above, see http://www.tune-up.com/products/tuneup-utilities/features/