Download: http://www.tune-up.com/products/tuneup-utilities/
Handy little program which does quite a lot:
- Clean registry
- Defrag registry
- Clean HDD
- Defrag HDD
- Remove broken shortcuts
- Speed up startup/shutdown
- Customise Windows
------- Custom themes
------- Custom icons
------- Custom login screen
------- Custom startup screen
- Quite a bit more
My dad's laptop was getting a bit slow, so ran 1-Click-Maintenance (does all the registry and HDD stuff) and some bits that 1CM didn't do, and it's noticeably faster. Just thought I'd get the word out. Also I'm sure that you could find a product code on a well known video sharing website...