11 Best PC Cleaner and Optimizer for Windows 10, 8, 7 [Free & Premium]

If your Windows computer suffers from slow boot times, frequent system crashes, or other common PC errors, download a PC cleaning & optimization tool right away. Using these performance-enhancing programs, you can significantly improve speed and boost overall productivity.

All these computer cleaning & tune-up utilities perform various tasks such as clearing junk files, caches, cookies, browsing history, temp files, fixing invalid registry entries, removing duplicate content and limiting unwanted processes from using the memory in the background & much more. This guide focuses on the best paid and free PC cleaner applications that are available in the software world today.

The market is packed with plenty of PC optimizer software, all claims to deliver faster performance than ever, but not all live up to the hype. That’s why we’ve tested more than 30 Software that optimizes PC and rounded up the best tools that will surely speed up your system and maintain it for a longer duration.

Our Top 3 Choices

What To Look For In The Best Computer Cleaning & Optimization Software?

Today, most of the PC Optimization Software for Windows 10 and other versions comes with a wide range of features for thorough cleaning and protection. The ideal ones include tools like:

  • One-Click Fix: To quickly clean PC & optimize overall performance:
  • System Cleaner: To scan & remove useless clutter, junk files, caches, cookies & more.
  • Memory Optimizer: To manage background processes that use unnecessary RAM.
  • App Uninstaller: To locate large, unused, unwanted apps & remove them in bulk.
  • Registry Cleaner: To find & repair invalid registry entries.
  • Driver Updater: To install the latest & compatible drivers for each device.
  • Duplicate Cleaner: To remove similar & identical photos, videos, audios & other files.
  • Game Booster: To enjoy the fastest & lag-free gaming experience.
  • Privacy Controls: To give your PC 360-degree protection.

And much more! Having each of these functionalities in one tool indeed makes the Best PC Optimizer software for Windows.

11 Best PC Cleaner and Optimization Software for Windows 10, 8, 7

Here is the list of the best pc optimizer and cleaning software to tune up your Windows computer.

1. Advanced System Optimizer

Advanced System Optimizer

Advanced System Optimizer

  • One-Click Maintenance
  • Remove Junk & Duplicates
  • Manages Startup Items
  • Registry Cleaner & Memory Optimizer
  • Game Optimization

Free Version: 24 Hours

Cost: $49.95

Advanced System Optimizer by Systweak Software is an excellent tune-up utility to clean, optimize & protect Windows 10 PC. It boasts a powerful set of features, which ensures your system works super smoothly without any lags.

Using the multipurpose tool, you can maintain your system’s health & make it run like a new one for a longer duration. You can read the complete review here: The Fastest Cleaner & Optimizer!


  • Excellent customer support
  • Windows Registry Backup
  • Removes junk files.
  • Updates Drivers.
  • Registry Optimizer.


  • The game optimizer feature is not sufficient for gamers.

Final Verdict: Advanced System Optimizer

Advanced System Optimizer, designed and developed by Systweak Software is one of the best PC Cleaners (2021). It claims to keep your PC running in the best shape and fulfills the claims by providing dedicated modules for cleaning, optimization & protection tasks.

2. Advanced PC Cleanup

advanced pc cleanup
Best choice (Recommended)

Advanced PC Cleanup

  • Removes junk, old downloads, and obsolete files.
  • Removes identity traces
  • Manager Startup programs.
  • Scans invalid registry entries.
  • Protects from malicious elements.

Free Version: Lifetime (Limited Features)

Full Version: $39.95

Advanced PC Cleanup is a complete package to clean obsolete and redundant files and restore disk space. It is also a proficient startup manager to customize the applications launching at the startup of your system. It can easily uninstall programs and remove old downloads from your computer.

With its Pro version, you can scan the registry, clean unwanted files along with the identity traces from the browser history. It will provide you with protection from the virus, trojans, adware, and spyware making it one of the best Windows 10 optimizer software.


  • Detects Malware, Junk, temp, and other unwanted files on your PC.
  • Start-up program manager to boost speed-up time
  • Free version available.
  • Money-back guarantee within 60 days.


  • None identified at the time of testing.

Final Verdict: Advanced PC Cleanup

As the name implies, Advanced PC Cleanup is a comprehensive Windows Optimizer to clean junk files, uninstall unwanted apps in bulk, and fix invalid registry entries. Not only this, but the free PC Cleaner also offers a Startup Manager to improve overall boot time.

3. Iolo System Mechanic


Iolo System Mechanic

  • Wide range of PC cleanup tools
  • Optimize Startup Configuration
  • Optimizes Hidden Internet Settings
  • Repair Broken Shortcuts & Internet Connections
  • Automatically Increases The Speed Of CPU, Hard Drive & RAM

Free Version: 30 Days

Full Version: $49.95


System Mechanic by Iolo is another great PC optimizer for Windows 10 that helps clean junk, and it claims to repair over 30,000 problems, which can lead to a slow working computer.

It lists a variety of problems in a classified format and recommends the best fixes to resolve the issues. You’ll be surprised to see the incredible boot time & improved RAM performance. read the complete review here: iolo System Mechanic Review


  • Easy to use computer optimizer
  • Intelligent cookie scanner
  • Free version includes lots of features


  • Installs add-ons at the time of installation like Ccleaner browser.
  • Some utilities displayed are not required such as App Uninstaller as Windows has a built-in tool for the same.

Final Verdict: Iolo System Mechanic

Iolo System Mechanic is the Best free PC Cleaner in the market right now. All credit goes to its comprehensive system cleaning package that includes tools to perform real-time system monitoring, LiveBoost (to maximize RAM), eliminate junk files & more.

4. Piriform CCleaner

Piriform CCleaner


Piriform CCleaner

  • Advanced Cleaning
  • Tools To Repair Registry
  • Duplicate Finder To Reclaim Space
  • Startup Manager
  • Uninstall Bulk Applications

Free Version: 14 Days

Full Version: $24.95


CCleaner by Piriform is one of the most popular PC cleaning software for Windows 10 among all the ones listed here. The computer cleaner is highly compatible with all the latest & oldest versions of Windows and macOS.

It has an excellent set of cleaning & optimization tools to wipe hard drives & tackle multiple types of PC issues. You can read the complete review here: Is CCleaner Still The Best PC Optimizer Tool?


  • Powerful Deep system scanning
  • Game Optimizer
  • Free of cost


  • There are no limitations to this $0 app as of now.

Final Verdict: Piriform CCleaner

Software uninstaller, registry cleaner, duplicate finder, startup manager are some of the major highlights offered by CCleaner, which makes it one of the Best PC Cleaner 2021 to choose in 2021. It even offers a clean and functional UI, suitable for novice users.

5. IObit Advanced SystemCare Pro

IObit Advanced SystemCare Pro


IObit Advanced SystemCare Pro

  • Startup Optimization & Junk File Cleaning
  • Registry Repairing
  • Privacy Sweeping
  • Disk Optimization
  • Driver Updater

Free Version: 15 Days

Full Version: $19.99


Next on our list of Best PC Optimization Software for Windows 10 is Advanced SystemCare Pro by IObit technologies. The software comes loaded with several PC performance-enhancing tools to take care of a variety of optimization needs.

Using this tune-up utility, you don’t have to worry about cleaning temp files, caches, unwanted resides, broken registries & so on.


  • Sleek interface design
  • Privacy sweeping tools
  • Adware & Spyware removing tools


  • Drive exclusion feature is missing
  • Installs promotion software
  • Ads in free version

Final Verdict: IObit Advanced SystemCare Pro

IObit does a fantastic job to rejuvenate your sluggish PC in a few clicks. It comes with real-time optimization, a Windows registry cleaner, and tosses in an array of security tools as well to protect the system from potential viruses, worms, trojan horses & more.

6. CleanMyPC




  • Junk & Cache Cleaner
  • Registry Fixer
  • Bulk Uninstallation
  • Manage Auto-run Applications
  • Data Shredder To Remove Files Permanently

Free Version: No Limit

Full Version: $39.95


Our list of Best PC Tuneup utilities for Windows 10 & other versions would certainly be incomplete without mentioning CleanMyPC. It includes a decent bunch of optimization tools, such as Computer cleanup, Uninstaller, Registry optimizer, Startup manager, File shredder, Browser extensions manager & more.

Install CleanMyPC right away to eliminate frequent crashes & errors.


  • Multilingual computer cleaning software
  • Trial version can clean up to 500 MB of junk.
  • Autorun optimization


  • Navigation is a bit difficult within the app interface
  • Notifications and Ads might be troublesome while using the free version

Final Verdict: CleanMyPC

CleanMyPC is an excellent Windows optimizer, as it offers an all-in-one approach to perform PC maintenance. From clearing up storage space and improving boot time to fixing registry entries, it offers everything you need to maintain a desktop in good shape.

7. Glary Utilities Pro 5

Glary Utilities Pro 5

Glary Utilities Pro 5

  • One-Click Maintenance
  • More Than 20 Tools To Optimize System
  • Variety Of Tools To Protect PC
  • Disk Repair & Registry Cleaner
  • File Encryptor To Password-Protect Files

Free Version: No Limit

Full Version: $39.95


Glary Utilities offers one of the best free PC Cleaners out there along with paid versions, which work amazingly well to speed up your computer & enhance overall performance.

It displays the boot time and suggests tips about what needs to be cleaned so that your system can perform smoothly. It offers a well-organized interface and a suitable choice for both novices and advanced users.


  • File Splitter to divide files into small files
  • Displays complete system information
  • Keeps a complete track of PC performance.


  • Doesn’t have dedicated tools to improve browsing speed
  • Requires .net framework

Final Verdict: Glary Utilities Pro 5

Glary Utilities 5 is the best free PC cleaner in the market right now and comes with a collection of tools to resolve myriad problems related to common computer issues. It provides tools like Startup Manager, File Shredder, Disk Defrag, Software Updater, etc.

8. Ashampoo WinOptimizer

Ashampoo WinOptimizer

Ashampoo WinOptimizer

  • One-Click Optimizer
  • Internet Cleaner To Remove Traces
  • Drive Cleaner
  • Uninstaller & Context Menu Editor
  • Tools To Control Windows Services & Processes

Free Version: 40 Days

Full Version: $49.99


Equipped with all the standard features of Best PC Cleaner & Optimizer, Ashampoo deserves a place in our list. It indicates CPU load and PC status in a classified manner to take necessary measures to improve overall system speed.

It features an Automatic tab for auto-cleaning, live monitoring, and game optimization so that you have a smoother experience than ever.


  • Receives frequent updates
  • A dedicated scheduler for regular optimization
  • A comprehensive toolkit to clean, optimize & protect


  • This app has delivered false alarms during the time we tested it.
  • It also seemed a bit slower than other apps tested.

Final Verdict: Ashampoo WinOptimizer 

To enhance overall speed and performance, choose Ashampoo WinOptimizer that offers tons of system-maintenance tools to perform automatic cleaning, fix invalid shortcuts, boost gaming performance, delete temporary files, close background services, and more.

9. AVG TuneUp


AVG TuneUp

  • Clean Up PC & RAM In A Click
  • Sleep Mode That Freezes Unneeded Apps
  • Built-In Software Updater
  • Junk Cleaner
  • Startup Manager

Free Version: 40 Days

Full Version: $49.99


Apart from regular system cleaning, AVG Tuneup offers a unique functionality – Sleep Mode, that boosts your PC performance when you are not using the system.

Its automatic and scheduled scanning for routine maintenance works amazingly well. It ensures your computer works in an optimal state for long hours, without any lags.


  • Supports hard drive defragmentation
  • Remove duplicate files in a few clicks.
  • Economy mode to balance power & work


  • At $49.99, it is one of the most expensive apps on this list.

Final Verdict: AVG TuneUp

AVG TuneUp truly deserves a place in our list of best free PC cleaners 2021. It is a complete digital toolbox that provides tons of cleaning and optimization tools along with features to update drivers, permanently delete sensitive files, and so on.

10. Restoro



  • Rebuild and Repair Windows OS
  • Virus detection removal and repair.
  • Registry Optimization
  • Restore Missing DLL files
  • Prevents Crashes and Freezes

Free Version: 30 Days

Full Version: $39.95


 Restoro is one of the best Windows 10 optimizers available as it can repair and rebuild Windows Operating System in addition to the normal optimization tasks. It also fixes the error messages and cleans your Registry with ease.

If your computer has started freezing and crashing, then Restoro is the right app for you as it facilitates repairing damages by malware.


  • Restore Valuable Disk Space.
  • Identifies websites that pose Threat
  • Restore DLL files


  • Interface needs a revamp
  • Does not include malware protection

Final Verdict: Restoro

Restoro is one of the best pc optimization software 2021, which is completely automated, making it a wonderful application for less-experienced users. It even comes with the ability to replace damaged system files, detect and remove malicious content, and more.

11. Avira



  • Identify Vulnerable Network
  • Detects malware and traces
  • Highlights outdated apps
  • Protects Privacy traces
  • Free VPN services

Free Version: Unlimiteddownload

 Avira Free Security is a remarkable free application that is available on all major platforms like Windows, Mac, Android, and iOS.

It helps users to protect their data, enhance the computer’s speed and performance and keep your browsing history away from data analyzers and seekers.


  • Offers Free VPN
  • Password Manager
  • Software Updater
  • Scans for virus and malware


  • VPN has data restrictions
  • The app is a bit slow in response

Final Verdict: Avira

Avira is one of the best free PC cleaners, available in the market today. It comes with an incredible set of features to uninstall outdated apps, remove privacy traces, erase browsing history, and a software updater to replace old versions with the latest ones.

Comparison Table Must-Have Windows 10 Optimizers (2021)

Here’s a brief comparison of popular PC Cleanup & Tune-Up Utilities, based on Key Highlights, Price & Compatibility.

Top 11 PC Optimizers Key Highlights Compatibility Price Download Now
Advanced System Optimizer Complete Optimization Suite With Tools To Clean, Protect & Speed-Up Performance Windows Vista, XP, 7, 8, 8.1, 10 (Both 32-bit & 64-bit) $49.95
Advanced PC Cleanup Cleans junk files, redundant files, and programs to free up storage space. Windows 10/8.1/8/7 (both 32 bit and 64 bit) $39.95
Iolo System Mechanic Multiple Scanning Modes For Quick & Deep Cleaning Windows 10,8,7 $49.95
Piriform CCleaner Availability For Both Desktop & Mobile Users (Popular Choice) Windows Vista, XP, 7, 8, 8.1, 10 $24.95
IObit Advanced SystemCare 14 Pro Simple, Straightforward Dashboard (Suitable For Novice & Advanced Users) Windows 10, 8, 7 $19.99
CleanMyPC Excellent Memory Boosting Modules To Speed-Up Performance Windows 10, 8, 7, XP $39.95
Glary Utilities Pro 5 Offers A Flash Set Of Small yet Useful Tools To Enhance Productivity Windows XP & above $39.95
Ashampoo WinOptimizer Configure Privacy Settings & Manage Administrative Tools From One Dashboard Windows 10, 8, 7 (Both 32 bit & 64 bit) $49.99
AVG TuneUp Excellent Tools For Boosting Internet Speed Windows 10, 8, 7 $49.99
Avira Award-Winning Antivirus Scanner with Password Manager and VPN Windows 10, 8, 7 Free
Restoro Repair & Rebuild Windows OS if needed. Windows XP & above $39.95

People Also Ask:

Q1. Which Is The Best Cleaner For PC?

Advanced PC Cleanup & CCleaner are the best windows 10 optimization tool to clean a PC and keep it in a good shape for a long time. Both the cleaning utilities, offer excellent modules for thorough system cleaning, 360-degree protection & memory boosting.

Q2. What Should I Do To Clean My PC?

Though the best bet to clean your computer is through a dedicated computer optimizer. Alternatively, you can follow multiple steps like Keeping your hard disk free, closing unused tabs, cleaning browsing traces, temp files, removing large/unnecessary files & so on to keep your system in tip-top shape.

Q3. Is PC Cleaner Safe?

There is a variety of PC Cleaning & windows 10 optimization tool available in the market that pose as genuine to enhance and speed up performance. However, not all claims live up to the hype. After researching more than 30 PC Cleaning Apps for Windows, we have rounded up these eight. All are safe to use and capable of fulfilling the optimization needs and requirements.

Q4. How Can I Optimize My Computer Performance?

To optimize your PC manually, then you must do this – Uninstall unused/large/unwanted apps, Limit auto-run items, Remove junk files, caches & more, Perform disk defragmentation, Clean duplicate files, Use a lightweight browser.

Q5. Do PC Tuneup Programs Work?

Well, the short answer is Yes! PC Tuneup Utilities make a noticeable difference in the speed and overall performance of computers.

Q6. What Does A PC Optimizer Consist Of?

The best windows optimizer for Windows is the one that can help in identifying & removing temp files, uninstall useless computer programs, fix invalid registry entries & helps in resolving common computer errors by optimizing the device for peak performance.

The Final Word on Best Free PC Cleaner & Optimizer For Windows 10, 8, 7

That concludes our list of the best free PC cleaners and the best PC optimizers you can get your hands on in 2021. It is a difficult choice to make when you have so many applications doing almost the same tasks.

In our opinion we suggest Advanced System Optimizer as the best windows optimizer application as it covers many aspects of cleaning your PC and that too for no charge. When it comes to choosing the best PC optimizer then Advanced PC Optimizer wins the comparison battle as it includes one of the best malware protection modules in addition to several optimization aspects.

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Recommended Reading:

Windows 10 21H1 update – How to Optimize PC, download it, and more

Cloud Tuneup Pro: Clean, Optimize, Protect & Manage Windows Computers Remotely

How To Fix Common Computer Errors On Your Computer Using Advanced System Optimizer?

5 Best Game Boosters And Optimizers For Windows PC In 2021: Free and Paid

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