1)   PC Speed-Boost Toolbar 1.3
PC Speed Boost & Registry Fix Toolbar. The All-In-One PC Mechanic! The PC Speed-Boost Toolbar is a browser addon that instantly boosts your PC performance with free registry scanning, spyware scanning and ad-blocking tools for faster browsing.

 2)   MyRegistryCleaner 3.0
Is your computer speed crawling at a snail’s pace? Are you frustrated every time you have to reboot your PC? You are not alone. Most people don’t know that these frustrating issues can actually be fixed with the click of a button.

 3)   Windows Vista Registry Cleaner 6.07
Windows Vista Registry Cleaner - Instant Registry Repair. Scan and Fix Errors in Seconds! If your Windows Vista system is performing slowly on your PC, or if you're getting frequent error alerts, then you need to scan & repair the windows registry!

 4)   Registry Fix Tool For Windows 2.02
Instant Registry Fix Tool - FREE Scan. Repair your Windows Registry in 2 Clicks! This free scanner will immediately pin-point the problems in your windows registry, and then queue them for correction. Simply download Registry Fix to begin your scan.

 5)   Windows XP Registry Cleaner 5.07
XP Registry Cleaner - Instant Registry Fix. Scan Your XP System in Seconds! If your windows XP system is running very slow on your PC, or if you are seeing alerts that say "registry error", then you need to scan and clean your registry. Download Now!

 6)   Windows Registry Cleaner 2.08
Windows Registry Cleaner - Free PC Scanner. Fix your registry in just 2 clicks! This free scanner instantly pin-points the errors in your registry & then queues them for cleaning. Simply download and install Registry Cleaner to start your scan!