Free Registry Cleaner, Junk File Cleaner and Windows Optimizers for Windows 10/8/7

You are probably here because you are looking for a free registry cleaner for your Windows 10/8/7 computer. Before you proceed, you need to know a few other things. Microsoft discontinued their own registry cleaners like RegClean, RegMaid with Windows XP onwards, and also its Windows Live OneCare registry cleaner more recently. While the question, whether registry cleaners actually make a Windows PC run faster is a hotly debated question, the fact remains that registry cleaners are one of the most used Windows software.Free Registry Cleaner

Apart from registry cleaners, optimization suites are also very popular with Windows users. All of us want our Windows PC’s to be running in top condition. While you can always use some tips to make Windows faster, many prefer to use a Registry Cleaner or a Windows optimization suite to keep their computer running smoothly.

This article will cover 10 Free Registry Cleaners and Windows Optimizers that will help your PC running smoothly.

Free Registry Cleaner, Junk File Cleaner & Windows Optimizer

1] CCleaner: CCleaner is one of the most popular and probably the safest registry cleaners available. The tool allows you to clean up your Windows Registry, Junk files, History, Privacy data, etc. – and offers some tools to let you control your start-up programs.

CCleaner consists of many tools that can help you a lot, such as disk wipers, system restores and lots more.


  • Powerful registry cleaner
  • Uninstall programs option
  • Editing your startup programs
  • System Restore
  • Disk Wiper
  • Exporting some settings to .txt file
  • Cookies cleaner
  • Including and excluding additional folders that you wish Cleaner t remove
  • Saving all settings INI file
  • Browser history, cookies and browsing data cleaner
  • Advanced settings.

2] Macecraft PowerTools Lite: PowerTools Lite is a freeware version of jv16 PowerTools, the well-known Windows optimization suite and uses the same engine as jv16 PowerTools – so you can be sure that you are in safe hands.

With the free PowerTools Lite you can:

  • Automatically clean your Windows registry.
  • Automatically fix many kinds of registry errors, such as broken file references.
  • Detect and remove unneeded history data, MRU, etc.
  • Delete temporary and junk files.

3] Rizone’s Power Tools: With Rizone’s Power Tools, you can clean and optimize your registry, launch hidden Windows tools, repair, optimize, backup important files and tweak the Windows OS, defrag, and do much more, to keep your Windows machine in proper condition.

It is a portable app which does not require an install and works just fine on Windows 10/8/7 & Vista.

4] TweakNow PowerPack: This fully integrated freeware suite of utilities that let you fine-tune every aspect of your computer’s Windows operating system and Web browser, including cleaning your disk and registry.

Apart from its Registry cleanup modules, it also includes a Virtual Desktop module. Its other modules include Disk Cleaner, Disk Usage Analyzer, Miscellaneous Tools, Registry Cleaner, Registry Defragmenter, Startup Manager,  System Information, Track Cleaner, Uninstall Program, Windows Secret &  Restore Backup.

5] RegSeeker: RegSeeker is a free-for-personal-use registry cleaner and an optimization tool that can help you in successfully optimizing your Windows PC’s speed and make it faster. It is a user-friendly tool that is designed perfectly so that your PC performs faster.

It has many features, some different from CCleaner such as registry cleaning, uninstalling applications option, some tweaks, backup option and lots more:


  • Registry Cleaner
  • Program Uninstaller
  • Tweaks
  • Backup Option
  • Startup Entries
  • History
  • Favorites
  • Printing Option
  • Much more.

6] IObit Toolbox: It is free portable software that system administrators and computer geeks may like to have a look at since it claims to solve PC problems.

IObit Toolbox is like a Swiss army knife, with more than 20 computer tools in one place, including Disk Cleaner, Registry Cleaner, Privacy Sweeper, Uninstaller, Registry Defrag, etc., to diagnose and fix PC problems, and clean, optimize, repair, secure and fully control your Windows computer. Also, see Iobit Advanced SystemCare.

7] SlimCleaner: It is a cloud-based optimizer for Windows PC. SlimCleaner uses cloud technology to analyze the software configuration of a computer and make recommendations based on collective research from IT professionals, technicians, and computer users around the world.

While this cloud-based tool has not caught the fancy of many Windows users, it does take a novel approach to keeping your Windows computer in lean, mean and fighting-fit condition.

8] JetClean is a new, free and light-weight utility for the Windows operating system, designed for system optimization, privacy protection, and junk file cleaning.

JetClean offers a 1-click solution to clean up your Registry, Windows junk files, and orphaned shortcuts. It also helps in protecting your privacy by keeping installed browsers, programs and apps like Windows Media Player, eMule, Google Toolbar, Microsoft Office, Adobe Acrobat, WinRAR, WinZip, etc. clean.

9] PC House Keeper: PC House Keeper is another comprehensive PC maintenance software for Windows and includes over 20 different tools to help clean up junk and registry, diagnose and improve your computer’s system and network performance.


  • Cache Cleaner
  • History Cleaner
  • Cookie Cleaner
  • Registry Cleaner
  • File Shredder
  • Startup Manager
  • Program Uninstaller
  • Process Explorer
  • Disk Cleanup Tool
  • IP Port Scanner
  • TCP Connections Viewer
  • MAC Address Changer
  • MAC Address Scanner.

10] Comodo System Utilities: Here is another fine system optimizing tool from the house of Comodo. This freeware suite includes a registry cleaner, privacy cleaner, disk cleaner, etc.

Its Force Delete module can cause force deletion of some undeletable files, folders, and registry keys. The Shredder module lets you permanently delete files from your hard disk.

11] Glary Utilities Free: The first thing you notice about Glary Utilities Free is it compact yet user-friendly interface. The interface is intuitive and very easy to use. It offers various modules that promise to keep your Windows PC running in top condition.

The best part of this freeware that I like is that it allows you to set all these options and then use the 1-click maintenance to clean up your PC.

Kingsoft PC Doctor, Puran UtilitiesToolwiz Care, Iolo System Mechanic Free, Eusing Cleaner, PrivaZer, Anti Tracks, AppCleanerAuslogics Registry Cleaner, Wise Care 365, Synei System Utilities, Yet Another Cleaner, Clean Master, BleachBit, Kaspersky Cleaner, AtomicCleaner, Registry Recycler Portable are some more free Windows PC Optimizers, Junk file cleaners and Registry Cleaners you may want to have a look at.

If it’s a good shareware you are looking for, you can check out our ReImage Repair review.

Well, this was our list of some recommended free Windows registry cleaning and optimization system utilities. But I am sure there may be much more such! Before using such tools, it is always a good idea to quickly create a system restore point first or back up your Windows registry, just to be on the safe side.

You may be interested in knowing that generally speaking, Microsoft does not support the use of Registry Cleaners in Windows.

Do share and let us know and which one you use and recommend? We’d love to hear your views on them.

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.