RegDoctor can safely and quickly clean and repair Windows registry problems with a few simple mouse clicks! It uses an intelligent, high-performance detection engine to accurately identify missing and invalid references in your Windows registry.

Windows 7 tweaks. Optimize Window 7 performance Utilities and Tools by Win7Zilla

Can detect a lot of hard drives troubles and give a solution for them: - Monitor hard drives health, performance and temperature; - Defragmemt and clean hard drives and registry; Show hdd activity, temperature, performance and health in tray icons

All in one Cleaner is a suite of tools to clean your system, it includes Disk Cleaner, Registry Cleaner, History Cleaner, and Startup Cleaner. it allows you to remove unneeded files and internet tracks, find and remove invalid registry entries.

You know when a PC is slow? You get that feeling of irritating and annoyance at its frustrating low speed and performance. There are numerous reasons for slow PC's and it happens to all PC's. Optimize your Slow PC with a free SLOW-PCfighter scan now!

WinUtilities is an award winning collection of tools to optimize and speedup your system performance. this suite contains utilities to clean registry, temporary files on your disks, erase your application and drive defragment. more.

YL Registry Cleaner is a registry cleanup utility works on Windows platforms, it has easy-to-use wizard window to guide you to scan and clean your Windows Registry safely. it scans the Windows registry and finds incorrect or obsolete information.

The older your PC is, the more junked-up its Registry becomes. That's why your PC gets slower and slower. Registry Cleaner will safely clean and repair Windows Registry problems with a few clicks and enable you to enjoy a cleaner and more fast PC.

RegistryEasy is award-winning Windows Registry Cleaner that scans your PC and safely cleans errors and invalid entries that cause system slowdowns,freezing and crashing. RegistryEasy repairs registry problems to make your computer run like new again!

CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space.