Glary Utilities

Glary Utilities offers numerous powerful and easy-to-use system tools and utilities to fix, speed up, maintain and protect your PC. It provides in 23 languages...

• Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/

Freemium Windows Android

Wise Registry Cleaner

Registry Cleaner and Optimizer. Clean registry junks, repair Windows errors, and keep your PC at peak performance. .

• Bundleware The installation may contain adwares. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/

Freemium Windows PortableApps.com

System Mechanic

System Mechanic automatically repairs errors and fragmentation, cleans out clutter, and tunes up your PC -- so that it runs smoothly, reliably, and up to 300% faster!...

Commercial $ $ $ Windows

SlimCleaner

SlimCleaner is a freeware PC maintenance program that uses crowd-sourced feedback to make up-to-date optimization recommendations for users. In many ways it's like...

• Bundleware The installer contains adware and possibly other malware. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/

Freemium $ $ $ Windows

Little Registry Optimizer

Little Registry Optimizer is a part of Little Apps` Little Registry Cleaner. This project is aimed to analyze the windows registry and (if needed) optimize it so it will...

• Discontinued No longer updated. Last version was released in 2011. See https://www.little-apps.com/little-registry-optimizer/

Free Open Source Windows

Auslogics Registry Cleaner Free

Safe and Easy Way to Resolve Stability Issues; Registry Cleaner clears invalid entries from your Windows registry in a click;.

Free Windows

CleanMyPC

CleanMyPC is a dozen tools in one for a cleaner and safer PC. It scans your whole system to clean up junk files and speed up your computer. Uninstall apps the right way...

Commercial Windows

WinUtilities

WinUtilities is a multi-functional system performance and optimization suite for Microsoft Windows. This collection of tools lets you supercharge your PC's...

Freemium Windows

KCleaner

KCleaner is designed to be the most efficient Hard Disk cleaner, tracking every useless byte in order to give you all the resources you may need for your documents...

Freemium Windows

Reg Organizer

Reg Organizer is a feature-rich application designed to edit, clean and maintain registry, fix errors in the system, and improve computer performance. The deep registry...

Commercial Windows

Toolwiz Care

Toolwiz Care is a free tool set designed to speed up your PC and give your system full care. With multi-functional optimization suite, this software provides a...

• Discontinued Discontinued but still available at download sites: http://www.majorgeeks.com/files/details/toolwiz_care.html

Free Windows

Auslogics Registry Defrag

Auslogics Registry Defrag will defragment and compact your Windows registry to reduce the amount of memory it takes up and restore system stability, so you can once...

Free Windows

Ashampoo HDD Control

Ashampoo HDD Control 2 provides complete monitoring of your hard drive(s). The software supports not only all common IDE and serial ATA hard drive(s), but also provides...

Commercial Windows

WinTools.net

Is a suite of tools for increasing MS Windows operating system performance. WinTools.net cleanly removes unwanted software from disk drives and dead references from the...

• Warning Overal funcionality is questionlable, since it looks like a bunch of shortcuts for build-in windows tools.

Commercial Windows

Eusing Free Registry Cleaner

Eusing Free Registry Cleaner is a free registry repair software that allows you to safely clean and repair registry problems with a few simple mouse clicks. The Windows...

Free Windows