Best Free Registry Cleaners
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Compare the Top Free Registry Cleaners as of March 2026
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What are Free Registry Cleaners?
Registry cleaners are software tools that enable users to clean the registry on their PC. Cleaning a PC's registry and fixing registry errors can significantly improve the speed and performance of a computer. Compare and read user reviews of the best Free Registry Cleaners currently available using the table below. This list is updated regularly.
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1
Secure Eraser
ASCOMP Software
What is deleted from the hard drive is far from gone. As long as the data is not overwritten, anyone can make it visible again at any time. This is particularly problematic when a computer is resold or given away. Secure Eraser utilizes recognized methods for data deletion and overwrites confidential information so securely that it cannot be restored even with specialized software. But that's not all: Our award-winning solution for secure data destruction also removes cross-references that could allow conclusions about the former existence of the deleted files in the allocation tables of your hard drives. The very easy-to-use Windows software overwrites sensitive data up to 35 times - whether it's files, folders, drives, the recycle bin, or browsing traces. Even already deleted files can be securely erased afterwards. In addition to overwriting with random values, Secure Eraser adheres to the guidelines of the NIST SP 800-88 standard and supports all common proven standards.Starting Price: $29.90 (lifetime-license) -
2
Auslogics BoostSpeed
Auslogics
Auslogics BoostSpeed helps businesses save money on expensive hardware upgrades by cleaning, tweaking and optimizing computer systems for top performance. Auslogics, an Australian software maker, has been offering professional computer maintenance solutions for over 15 years, with its flagship product BoostSpeed downloaded over 50 million times worldwide. BoostSpeed is an all-in-one suite of tools to remove file clutter, fix registry issues, defragment HDD, optimize SSD, tune up Windows, improve internet speed, boost MS Office apps, and resolve various malfunctions. In addition to that, it includes tools to cover many other PC-related tasks: recover accidentally deleted files; shred sensitive files & wipe free space on drives; check HDD for errors & prevent data loss; get full system information for getting support or part replacement; force-remove apps & their leftovers. The program is simple enough for novice PC users while letting IT pros run more advanced tweaking.Starting Price: $69.95 per year -
3
JetClean
BlueSprig
With a single click, JetClean gives you that fresh, new PC feeling again! Lightweight and easy to use, JetClean removes system junk files and improves your PC performance. Cleans junk files and unneeded registry entries to improve the performance of your PC with one simple click. Takes up very little space in your computer, but offers great computer clean and fine-tune functionality in a reliable way. Swiftly locates and deletes any junk files that may exist in recycle bin, recent documents, temporary files, log files, clipboard, DNS cache, error reporting, memory dumps, and jump lists. Better PC performance for your work or gaming. Gives you the new computer feeling again. Reduces system errors and crashes by safely taking out all unused and old registry entries. Helps speed up PC startup by rearranging applications that launch together with Windows. Shuts down programs that may slow down your system.Starting Price: Free -
4
CleanGenius
EaseUS
If you are struggling with computer error after computer error, it can be enormously frustrating. If you are tired of the sluggish computer operation and slow load times, we recommend EaseUS CleanGenius to help you. This powerful PC booster provides an all-around and easy-to-use solution for Windows users to speed up PC, optimize & repair OS, free up disk space, etc. with only 1 click. Quick scan your computer OS to detect the problems. Deep scan your computer to help you understand more about your system problems as well as broken or invalid files. Clean, repair and optimize your computer system with just 1 click. Locate and remove cloned files, empty files, files of large sizes, or recently modified files. Unlock files or folders locked by system or other programs and help to rename, move or delete locked resources. Keep your registry defragmented and fix registry errors. Quickly clear junk files, useless shortcuts, unwanted files or software etc.Starting Price: Free -
5
IObit Advanced SystemCare
IObit Software
Speed up computer, clean your PC, and protect your private data. AI makes everything easier, and extraordinary. The reasons are always one after another and you don't know all of them. Too many programs run at system startups. Unknown applications and services are running and occupying memory. Your hard disk is lack defragmentation. Advanced SystemCare can always fix them within one shot and optimize your PC with 30+ troubleshooters. Speedup, we mean it. Let AI liberate your computer and save your time. In the new AI mode, Advanced SystemCare can make a personalized plan for you to scan and clear tons of junk files, unnecessary logs, and caches, leftovers from third-party tools, and browsers, including your Windows 10 system. It always learns from your optimization habits and PC performance status. Find out your PC problems and errors, then fix them all. A daily click brings you a fresh PC.Starting Price: $16.77 per PC per year -
6
Argente Utilities
Argente Utilities
Argente Utilities supervise your computer continuously searching problems and performance bottlenecks. In addition, even we execute the routine maintenance and update when you are not in front of the computer for that will not be an annoyance. Now it is more easy than ever having a clean computer. Argente Utilities can remove quickly unnecesary files from Windows®, files that commit your privacy, at the same time you update the register and remove the huge amounts of the disk space. Obtain advanced optimizers performance that will help you to charge applications in a moment, to work faster and improve the functioning of the games. As if this were not enough applications, Argente Utilities puts as a disposal all kinds of applications, like hidden tools from Windows®, event managements tools, passwords, calendar, FTP and more.Starting Price: Free -
7
Auslogics Registry Cleaner
Auslogics
Auslogics Registry Cleaner comes recommended as the best registry cleaner in terms of safety and effectiveness. The app has a novice-friendly interface and special options that prevent an inexperienced user from doing something that might damage the operating system. All you have to do is run a scan of your registry, review all detected abnormalities and decide if you want any of them ignored during cleanup. Then simply click the ‘Clean up’ button and get ready to enjoy your smoother-running PC. Auslogics Registry Cleaner will let you: - Run one-click scans and cleanups for quick Windows registry repair - Search the Windows registry for specific entries by keywords, such as when you need to clean out keys left by an uninstalled app - Take full control over cleanup by excluding keys you don’t want cleaned - Schedule automatic scans for continuous performance protection - Back up the registry prior to cleanup for added safetyStarting Price: $39.95 per year -
8
Max Registry Cleaner
Max Secure Software
Max Registry Cleaner is a simple tool to clean up your PC and make it run faster. This tool scans your Windows registry for registry keys that are of no use, or potentially leftover remnants of Software that has been removed. It then gives you the option of removing this dead weight in your system. If your computer is not running the way it did when your first purchased it, then most likely Windows Registry has corrupted entries. You can safely clean, repair and optimize the Windows registry by fixing this obsolete information. By using a Max Registry Cleaner regularly and fixing registry entries your system will run faster, will be stable and crash free. The Windows Registry is like “engine” behind the Windows Operating System. Unfortunately as we use our computers more and more this engine gets full of clutter in the form of misplaced data, bad programs, or simply overload. This clutter slows down your computer and starts causing crashes.Starting Price: $29.95 one-time payment -
9
Cleaning Suite
ASCOMP Software
Cleaning Suite: System cleaning and Tuning for Windows If the system boots up more and more slowly and the hard drive gets fuller, then it is high time for a thorough system cleaning! But which data can be deleted without risk, which are still needed for the smooth system and program flow? Cleaning Suite gives the answer! A total of six helpers analyze your system and enable deep cleaning operations. For example, you can delete temporary files, clean browser histories, caches, and cookies from all popular Internet browsers, and prevent installed applications and tools from starting automatically at system startup. The Windows Registry can also be optimized by Cleaning Suite in a targeted manner. The Windows software proceeds very carefully to ensure unrestricted use of your computer even after the cleaning process. On top of that, Cleaning Suite provides advanced features for the Windows Recycle Bin. A restore center provides the ability to undo certain actionsStarting Price: $19.90 (lifetime-license) -
10
WinUtilities Pro
WinUtilities Pro
WinUtilities Pro is a bundle of important registry, disk, and other system utilities for your PC. Easy to use and effective, WinUtilities Pro is the best solution to improve your PC's performance. The following features are supported: Cleans disks from information that clogs your system and reduces the performance of your computer, easily manage program execution at windows startup, easily tune up your system performance, split any type of file into smaller pieces and rejoin them to the original file, makes sure that no data thief can get his hands on your sensitive data. After you have finished downloading the self-extracting setup file from our internet site. Just double click the setup file in Windows explorer and the setup will start. Install: Run the installation program (the EXE file that you have downloaded from our site), follow the instructions that appear on the screen.Starting Price: $19.95 per year -
11
Wise Care 365
WiseCleaner
Free to clean up disk and fix registry problems on your PC. Protect your privacy and make your PC more secure. Provide a better solution for optimizing and accelerating your computer! Take prompt action once some applications attempt to make modifications without your permission. This protector will identify and stop any processes that try to secretly change the Windows registry. Wise Care 365 is definitely the preferred option for billions of Windows users who want to keep their Windows PC at peak performance. Speed up a slow computer and free up more valuable hard disk space in seconds. Over time, your computer’s hard disk drive and registry will become cluttered. Wise Care 365 can defrag the drive and registry to make them organized, thus making your computer run faster and more stable. You are going to be amazed by its blazing defrag speed. It optimizes PC's performance, defrags disks and the Windows registry, and manages the startup process as well as services.Starting Price: $29.96 one-time payment -
12
WashAndGo
Abelssoft
WashAnd Go removes internet traces in the browser cache, cookies and other unnecessary garbage files. WashAndGo can detect and correct system errors. Your system will become more stable and faster again. Incorrect entries in the registry can be the cause of program and system crashes. WashAndGo offers a security backup for "just in case" so that changes can be undone at any time. Your own Windows PC must be regularly maintained and cleaned up. For over 20 years, the WashAndGo program, which is published annually in a new and optimized version, has been helping with this. WashAndGo takes care of the cookies, the cache and the history lists of the web browser, the history of the last processed files of over 500 applications, and the meta data of Word, Excel, or PowerPoint. This cleaning also purifies the system. It also eliminates private "fingerprints" that the user leaves on his computer.Starting Price: €29.90 one-time payment -
13
Abelssoft Registry Cleaner
Abelssoft
Scan the registry, correct errors and get rid of memory waste, automatically once a month, if desired. Registry Cleaner can detect and correct errors. Your system will become more stable and faster again. Registry Cleaner can detect and correct errors. Your system will become more stable and faster again. Our SmartClean feature protects you by only cleaning and correcting entries that are garbage. None of your working entries will be touched. The registry is the central database of Windows. Unfortunately, many applications and tools write new entries into it both incessantly and without being asked. It does not take long for the registry to become so bloated and desolate that its use slows down the system or even causes it to crash. In short, If the registry is not cleaned up regularly, Windows takes longer to read out urgently needed information. RegistryCleaner is a top modern registry defragmenter that restores orders.Starting Price: €12.90 one-time payment -
14
Avira System Speedup
Avira
Too many programs trying to run automatically can really slow you down. System Speedup displays a list of applications that run on start, and lets you postpone or stop the ones you don’t need. It will even alert you to ones that slow down your system starts. Over time, your hard drive becomes cluttered. System Speedup scans your PC for all the stuff it no longer needs – system cache, temp files, internet junk, and unnecessary user data. It then clears it all, cleaning your PC and freeing up disk space in the process. There’s some stuff browsers can’t delete by themselves. System Speedup removes all online traces and temporary data from every browser, and then optimizes the browser database to keep your disk clean. Your registry is a critical behind-the-scenes player on every Windows machine. But over time, invalid registry entries or leftovers from uninstalled software pile up. System Speedup can analyze and clean up any registry problems you have.Starting Price: $31.99 per PC per year -
15
MV RegClean
Velasco
MV RegClean is a safe software and does not delete any type of file, it only eliminates invalid entries in the registry that refer to files that no longer exist, but even so, it has a powerful backup. The Windows registry stores various information about the operating system and installed programs, as well as settings and adjustments, among other data. As we install/uninstall programs, the registry gets inflated more and more, reducing the system's performance, in addition to leaving it completely full of dirt and non-existent entries. Compatibility with Microsoft Windows 7 (With Service Pack 1 onwards), 8, 8.1, 10, 11 and Server (32 and 64 bits). Developed in interface in C++ Builder and engine in Microsoft Visual C++.Starting Price: Free -
16
Wise Registry Cleaner
WiseCleaner
Clean registry junks, repair Windows registry errors, defragment Windows registry, and keep your PC at peak performance. This new feature is ideal for computers that are used by more than one person, such as home computers that are shared by a family and public computers in public places. People who have administrative rights can easily scan and clean all users' registries at once. You do not need to log in under each individual account to scan & fix registry issues. The registry keeps growing when you use Windows, and so does the obsolete items in the registry, which would eventually lead to performance degradation and even system crash. Wise Registry Cleaner scans the Windows registry and finds errors & residual items in the registry and then cleans or defrags them. By fixing these residual and corrupted items in the Windows registry, your system will run faster and more stable.Starting Price: $29.95 one-time payment -
17
jv16 PowerTools
Great Software Company OÜ
jv16 PowerTools is your one-stop-shop for true PC performance. Our system knows what files should be removed and what to keep safe. Ensuring your PC performs perfectly. Improves your Windows PC stability. Scans for system errors, left-over software, and unnecessary junk. Removes tracking cookies from your browser for better privacy. Remove unwanted programs intelligently. Detects traces of previously uninstalled software and cleans up. Easily delete unwanted software and built-in Windows apps you no longer need. Search for your files and data with ease. Find any file and all registry data with search words, list everything added by installed programs and quickly find lost documents. Delete locked and write-protected files. Right from our home screen, you can quickly and easily view system usage information, close unneeded apps, quickly find files, and begin using our many tools.Starting Price: $11.99 per year -
18
AML Free Registry Cleaner
AML Soft
AML Free Registry Cleaner is a registry cleaning software. It will safely clean and repair Windows registry problems with a few clicks and enable you to enjoy a cleaner and more efficient PC. The registry is the nerve center of your PC, and problems with the Windows registry are a common cause of Windows crashes and error messages. With a detailed startup manager, you can see what all programs start automatically with Windows and optionally disable them. AML Free Registry Cleaner also finds and removes common junk files that accumulate over time. It comes pre-configured with 22 types of file extensions that can usually be considered disposable, and you can extend the range by adding your own file types. AML Free Registry Cleaner also allows you to search for words in the entire registry. AML Free Registry Cleaner also provides a detailed overview of running programs and processes.Starting Price: Free -
19
Eusing Cleaner
Eusing Software
Eusing Cleaner is a free system optimization and privacy cleaner tool. It allows you to find and remove the unused files in your system, invalid registry entries, delete your internet history and provides plug-in support to clean the history for over 150 third-party applications. You can select the items that you want to be cleaned and also specify cookies that should not be deleted. With simply one click, Eusing Cleaner can erase the cache, cookies, history, typed URLs, autocomplete memory, index.dat from your browsers, and Window's temp folder, run history, search history, recycle bin, and recent documents, etc. It also includes an option to overwrite deleted data multiple times, so it cannot be easily recovered. Additionally, it contains a fully featured registry cleaner. It will scan your Windows registry for invalid or obsolete information and provide a list of the errors found. After fixing the invalid entries, your system will be more stable and run faster.Starting Price: Free -
20
Simple Registry Cleaner
Simplestar Software
The Startup Manager allows you to quickly and easily manage which applications and services you want to launch at startup to optimize boot times and overall PC performance. Simple Registry Cleaner is unbelievably easy and quick to use and includes safety features like automatic backups, restore wizard, exclusions, and creates a system restore points. By repairing issues in your Windows Registry, you will experience fewer Registry-related system issues, crashes, and conflicts. Simple Driver Updater uses proprietary algorithms to scan your Registry for issues and safely repair them. Its Simple Registry Cleaner optimizes the organization and structure of your registry to improve its efficiency and effectiveness. Restores optimum performance to your registry. Simple Registry Cleaner will scan your Windows registry for issues. Simple Registry Cleaner can repair, maintain and optimize your registry to restore optimum efficiency and effectiveness to it, and to your PC.Starting Price: $35.75 one-time payment -
21
Glarysoft Registry Repair
Glarysoft
The highly intelligent engine that finds invalid registry entries. High scanning speed with detailed results. Make backups of any registry change made. Improve system performance and stability. Fast, thorough, and safe scanning engine. A perfect solution allows you to safely scan, clean, and repair registry problems. Fast, simple, and straightforward. It analyzes more than a dozen of different areas in your registry and can identify up to 18 types of errors. It can also thoroughly scans the Windows registry for errors, invalid entries, Regedit optimization, etc. It creates a backup copy every time you repair the registry and also lets you add safe registry keys to a white list, so you can use it to restore the registry to the current status in case you encounter some system failure. With a fast, thorough, and safe scanning engine, it scans Windows Registry quickly with comprehensive analysis, a quick scan takes only a little time to finish.Starting Price: Free -
22
RegSofts Free Window Registry Repair
RegSofts
Almost all Windows users gradually experiences the downfall in their PC's performance. Much of it can be attributed to Windows Registry Errors. By using Free Window Registry Repair regularly and repairing your registry your system should not only be more stable but it will also help Windows run faster. For your convenience it automatically backup any repairs made so that you always can restore Windows registry to the original state. The registry is a heart and soul of any Windows system. It contains information that controls how your system appears and how it behaves. Almost all Windows users gradually experiences the downfall in their PC's performance. Much of it can be attributed to Windows Registry Errors. For your convenience and for insuring maximum protection. Free Window Registry Repair automatically backup any repairs made. So you always can restore Windows registry to the original state using restore button.Starting Price: Free -
23
Registry Life
ChemTable
The system registry is one of the most important components of the operating system. The stability of the system's operation depends upon it being in working order, and the speed of the applications you work with depends upon the volume of data contained in it. Registry Life helps correct errors in the registry and optimizes it. It's a compact, simple to use, and free solution for servicing your system registry. Registry Life offers a handy tool to clean and repair the registry. With this tool, you can run checks on the registry to detect more than ten different kinds of problems. At the same time, this tool deletes informational junk from the registry. Registry Life is a utility to defragment and compress the registry. The program optimizes the registry quickly and efficiently and displays results of this operation visually.Starting Price: Free -
24
Auslogics Registry Defrag
Auslogics
Auslogics Registry Defrag is recommended by experts as a powerful free registry defragmenter. When you open it, you will find a simple intuitive interface that will guide you through the defragmentation process. You simply click a few buttons and the app does the rest. Auslogics Registry Defrag scans through the registry to find gaps and unused entries. Then, it reorganizes it, removing any fragmentation to improve speed and performance. And that’s it! Then, you can enjoy your Windows PC experience without worrying about the registry. Registry defragmentation can be performed not only as a quick fix for glitches, but also as a part of your regular system maintenance. Editing the registry manually isn’t recommended unless you’re an expert, since one small move can seriously damage your whole system. However, this tool makes registry defragmentation accessible to everyone. Auslogics Registry Defrag is time-tested and completely safe to use.Starting Price: Free -
25
FCleaner
FCleaner
FCleaner is a freeware all-in-one Windows disk and registry cleaning and optimization tool. It removes unused files and invalid registry entries that are eating up your disk space and slowing your system down, tweaks your system, and allows your Windows to run faster. FCleaner can also protect your privacy such as internet history, and the cookies that websites leave behind. You can erase all the traces of your online activities in just one click with the help of FCleaner. No experience or computer skills are necessary! FCleaner is free, but it does not contain any spyware or adware. A full-featured 'uninstaller' for you to uninstall, repair and update software. With the help of 'startup manager,' you can enable or disable the applications which run when Windows startups. Cooperate with RAMRush to optimize memory. Cooperate with RecycleBinEx to manage Windows Recycle Bin.Starting Price: Free -
26
Puran Registry Cleaner
Puran Software
Puran Registry Cleaner is an easy-to-use free tool that can help you find and delete unnecessary registry keys and values for better performance of your computer. Scan and delete invalid registry keys and values. You can select the type of registry keys to be scanned. You can also exclude certain registry keys from detection. It can also be scheduled if used with Puran Utilities Batch Fix. Puran Registry Cleaner is compatible with Windows XP/2003/Vista/2008/7/8 including 64-bit versions. It provides native support for 64-bit versions.Starting Price: Free -
27
Puran Registry Defrag
Puran Software
Puran Registry Defrag is a free utility to defrag and compact Windows registry for better computer performance. Scan and defrag Windows registry. Scan registry results with estimated registry size reduction. It can also be scheduled if used with Puran Utilities Batch Fix. Puran Registry Defrag is compatible with Windows XP/2003/Vista/2008/7/8 including 64-bit versions. It provides native support for 64-bit versions.Starting Price: Free -
28
Ashampoo Registry Cleaner
Ashampoo
Windows stores common application settings and configuration data in a central database called Windows Registry. Over time, this database can become cluttered with leftover data from no longer installed software and entries can even become corrupted. Since so many applications rely on the Registry for information, clutter and data corruption can cause noticeable performance drops and make your PC feel sluggish and unresponsive. Frequent error messages or problems when uninstalling programs can also be caused by Windows Registry issues. Ashampoo Registry Cleaner 2 scans your Registry to detect and fix corrupted, redundant or invalid entries. By cleaning and compacting your Registry, your overall system speed will increase since read operations that target the Registry will perform faster. For extra safety, Ashampoo Registry Cleaner 2 comes with real-time backups to undo any modifications at the click of a button.Starting Price: $14.99 one-time payment -
29
uFlysoft Registry Cleaner
uFlysoft
uFlysoft Registry Cleaner is freeware, a powerful combination of registry cleaner and system optimizer for Windows. Cleaning registry errors, removing junk files, and running registry defragmentation, and system optimization, can effectively speed up your PC and protect it from crashes, slowdowns, and errors. Make registry cleanup and system maintenance easier than ever! Totally free to scan, clean invalid registry keys, and repair registry errors. One click to optimize your Windows system. The restore feature makes it more convenient and safe. Also serves as a free uninstaller, startup manager, etc. Operating system, designed for Windows XP/2003/Vista/7/8/8.1. uFlysoft Registry Cleaner is a professional registry repair software and the best registry cleaner, which can run a complete or customized registry scan and repair errors like invalid entries. Be brave to make a change to your registry! uFlySoft Registry Cleaner will make an automatic backup for each registry change.Starting Price: Free -
30
Adaware PC Cleaner
Adaware
Join the millions of users who trust Adaware Antivirus to protect their PC. With Adaware PC Cleaner, finding & removing unwanted files has never been easier. Enjoy a clean and optimal PC experience with every startup. Adaware PC Cleaner has all the essential tools you need to keep your PC running smoothly and as well as new. Our powerful Windows Repair feature identifies and repairs common Windows issues for you. Use our one-click scan solution to clean your registry, remove unwanted pop-ups, and declutter your PC faster than ever. Use Adaware PC Cleaner to improve your PC performance and optimize your PC by reclaiming disk space with one simple click. Scan and clean gigabytes of unnecessary files, system clutter, log files, temp folders, and even leftover junk that takes up space on your computer in seconds. Element to clean detection, invalid entries, and obsolete registry data. Windows startup configuration and improved application performance.Starting Price: $43.76 per year
