Mz Ultimate Tools by Michael Zacharias

“Mz RAM Booster is a program created to improve the performance of your computer by auto-recovering RAM and fine tuning some Windows system settings! It uses minimal resources and almost no CPU time....” More about Mz RAM Booster

“Mz CPU Accelerator is an application that automatically changes the priority of the foreground window, by allocating more CPU power to the currently active application (program-game). It automatically...” More about Mz CPU Accelerator

“Mz Services Manager is a small, simple, easy-to-use application, designed to help you take control of Windows services. Create Windows services profiles based on on what is suitable for you and load...” More about Mz Services Manager

“Mz Ultimate Booster is a powerful Windows application, to greatly increase your computer speed and stability. It can fine tune Windows system settings (by automatically detecting your computer...” More about Mz Ultimate Booster

“With Mz Registry Backup you can manually or automatically backup-restore your registry. It can easily be used and gives you the opportunity to perform a complete or a custom registry backup. ”

This is a 'registry cleaner' that is supposed to clean or fix a PC by removing invalid registry settings.