15 Best PC Optimizer Software For Windows 10, 8, 7 In 2021

Published Date :
Category : Top 10 | Windows
15 Best PC Optimizer Software For Windows 10, 8, 7 In 2021

In this write-up, we have genuinely reviewed the 15 best PC cleaning and optimization tools for Windows 10 & older editions, including their key features, advantages, disadvantages, and verdict.

If your laptops and computers aren’t catching up to speed like they normally used to, or they taking a lot of time to respond, then you’re in desperate need of the best PC optimizer software. Just like any other machine, computers also tend to become slower over time.

It majorly happens when the hard-drives take up high storage of unwanted data (i.e., cache, cookies, temp files, program leftovers, etc.) present in your Windows PC.

And this is where Windows Optimizer software for PC comes to the rescue, by removing various kinds of junk from the hard drive and making the computer efficient and faster than ever before.

But when there are tons of PC optimization tools in the market, one needs to do a lot of research before opting for one. And hence we bring you a well-researched list of the best PC optimization software to improve your computer performance and make it run like a brand new machine.

Best Free and Paid PC Optimizer Software For Windows In 2021

Here we present our top choices for the best free Windows optimizers to enhance your PC performance and free up disk space.

1. CleanMyPC

“A great tool to keep your PC fast and maintained”


CleanMyPC is a very popular PC optimization software. It offers all the required features and tools that you can use to make your PC fast and manage the storage. Using the software you can easily remove registry files, junk files, uninstall software and remove their supporting files. The process of cleaning is very easy and you can erase all the files easily and securely.

The best part about this software is that you can get this software at a very cheap price. As compared to other competitors too it has a very reasonable price offering. The only downside of this software is that it fails to protect the PC from malware and online threats.

Key Features of CleanMyPC:

  • The software lets you uninstall software and their residual files effortlessly
  • You can get rid of all the registry related issues with CleanMyPC
  • It can even manage Windows startup programs for fast start
  • It offers a detailed report of every action you perform


  • It takes no time in installing and using the software
  • You can easily get used to the interface as it is very simple
  • All the files are deleted securely with its deleting utility
  • The software has a dedicated software uninstaller for better performance


  • You can only clean 500 MB of junk with the free version
  • It fails to protect the PC from malware

Windows Download Button

2. Piriform CCleaner

“A globally renowned Windows 10 optimization tool to clean system junk”

Piriform CCleaner

With over 2.5 billion downloads, CCleaner has surely made its mark in the world. It is one of the world’s favorite PC optimizer tool that is very easy to use. It gives PCs 28% more free RAM and makes PCs boot 53% faster. It comes in two variants, one which is free (with lesser features) and the other which is not.

It gives cleaning in one click and optimizes your PC in no time. It cleans up unused files and makes your PC faster. From many popular internet browsers, it cleans traces of your internet history. It is perfect as a Windows 10 Optimizer tool.

Read More: Best Driver Updater Software For Windows 10/8.1/8/7

Key Features of CCleaner:

  • It gives standard privacy protection and standard cleaning.
  • It updates apps to reduce security risks.
  • It keeps your browsing history private.
  • It detects and removes internet trackers.
  • It keeps you from running out of space.


  • Fast and safe application with many strong cleaning capabilities
  • Gives you a detailed report of out-of-date programs
  • Built-in duplicate photo finder tools to delete similar items
  • Helps speed up slow computer
  • Allows to update outdated drivers with ease


  • Its interface is packed with lots of features that may confuse novice users
  • Free edition offers only a basic set of features

The Final Verdict

After taking all the features, pros and cons into consideration, we can say that CCleaner is an excellent program to remove junk and improve the overall PC performance. However, you need to purchase the paid version if you want to use most of its advanced functionalities, i.e., disk space analyzer. 

Windows Download Button

3. Norton Utilities

“The best free PC optimizer for Windows 10 users”

Norton Utilities

Norton is a popular brand, known for providing the best antivirus software. And that’s not just it. The company also offers the best PC optimization software that’s incomparable to any other tools available in the marketplace. Its Windows optimizer provides preset profiles that help boost the performance of your PC. Norton Utilities also gives you one-click optimization which is super easy and efficient.

Key Features of Norton Utilities:

  • It cleans and uproots common issues that can cause slowdowns or crashes.
  • It provides with freed space by discarding unused items.
  • It helps maintain digital privacy by erasing recently opened files and website browsing history.
  • One-click Optimization and easy to use.
  • It defrags the registry and fixes it to retrieve all the user memory.


  • It has a clear and impressive UI
  • Industry-acclaimed tool that makes optimizing PC effortless
  • Quickly scans and delete redundant files
  • Allows to recover accidentally deleted data


  • Not an ideal product for slowing down PCs

The Final Verdict 

In our view, this software is among the best Windows 10 optimizers for every user who wants to enjoy seamless browsing experience. However, if your sole purpose is to speed up your slow computer, then it is advised to go for the other utilities mentioned on this list.

Download Now

4. Ashampoo WinOptimizer

“The best Windows 10 PC optimization software utility that delivers on its promises”

Ashampoo WinOptimizer

Ashampoo WinOptimizer, one amongst the best free system optimization tools and is highly abled. This free PC optimizer is specially developed for Windows and so, it makes the maintenance fast and easy for Windows users.  This software gives you a faster, cleaner and more reliable windows system.

Key Features of Ashampoo WinOptimizer:

  • Optimize Windows Registry with Registry Optimizer.
  • Remove internet traces with Internet Cleaner.
  • Speed up Windows startups with Startup Tuner.
  • Get detailed system information.


  • Fast and thorough system scans
  • Improves your computer’s startup time
  • Fast and easy installation
  • Keeps your online privacy intact
  • Powerful system and junk cleaning capabilities


  • Not compatible with Windows XP and Vista editions
  • No classic install wizards

The Final Verdict 

It’s packed with a bunch of useful features such as AntiSpy and junk cleaner that make it the best free optimization software for Windows PCs. However, if you’re still using older Windows versions, Ashampoo WinOptimizer is not an ideal product for you. 

Download Now

5. The PC Decrapifier

“The best free PC speed up software for Windows”

The PC Decrapifier

With a quirky name, this best free Windows optimizer tool does exactly what its name suggests.

It decrapifies your system. PC Decrapifier focuses on discarding programs that come preinstalled on freshly purchased computers. It works great to clean out the bloat on your new system. It provides an easy step-by-step process to help you remove the junk clogging up your computer. The thing that makes it the best PC optimization software is that it’s a free tool so you don’t have to spend a single penny.

Read Also: Best Free PC Cleaner and Tuneup Software for Windows

Key Features of The PC Decrapifier:

  • It takes up a very less amount of space.
  • It can uninstall programs in bulk and sometimes without a lot of user action.
  • This can be run off via USB as well.


  • Relatively lightweight application
  • There’s no need to install it as it’s a portable app
  • Removes Windows programs in bulk


  • Lack of important program filtering options
  • Limited set of features compared to other paid PC optimizer tools

The Final Verdict 

The interface of this program is a bit old-fashioned, but apart from that, it is a solid utility. Despite being a freeware, it encompasses quite a decent selection of features that make it one of the best PC performance optimizers for Windows users to download in 2021.

Download Now

6. SlimCleaner Free

“One of the best free computer optimizers to clean system junk”

SlimCleaner Free

SlimCleaner is not just one of the best PC optimizer software available online, but also the world’s first system utilities tool. It has a fast and powerful cleaning engine to do cleaning and also has a cloud-based optimization engine. It helps you to remove all the junk and broken files from your PC to get it to function in a gilt-edge condition. It is basically a free software, is community-driven and delivers up to date information, ratings, and recommendations from users. There is a paid version available for this Windows 10 computer optimizer which offers some additional features.

Key Features of SlimCleaner:

  • It can be used from a portable device.
  • It gives Unwanted Startup items alert and then optimizes them.
  • It has various modes like Performance boost mode and Power management mode.
  • It backs up the registry automatically.


  • One-click junk cleaning feature
  • Helps optimize startup items
  • Powerful PC tune-up and maintenance features
  • Takes automatic backup of system registries


  • Doesn’t let you uninstall applications in bulk
  • Takes longer than usual to scan your system

The Final Verdict 

After evaluating all the major aspects related to this tool, we can say that this best free Windows 10 PC optimizer is worth giving a shot if faster scan and bulk deletion features are not among your topmost priorities.

Download Now

7. Comodo PC Tuneup

“A robust utility to clean and optimize PC performance”

Comodo PC Tuneup

Comodo PC Tuneup, one amongst the best system optimizer tools, analyzes critical Windows events that occur during startup, shut down and while running applications and then further resolves them. It is a tune-up utility suite, a powerful PC optimization software that removes disk garbage and fixes registry problems.

Key Features of Comodo PC Tuneup:

  • It goes through the Windows settings and adds them to default to make it ready for efficient use.
  • It identifies and eradicates unnecessary startup items that make your software lag behind.
  • It has the added benefit of no installation limits.


  • Simple and easy to use interface
  • One-click cleanup for Windows
  • Deep and custom scans
  • Helps disable unnecessary startup programs


  • Need to shell out money to use it advanced features
  • Restore functionality is not up to the mark

The Final Verdict 

Comodo PC Tuneup is one of the best system optimizer for Windows 10 to clean junk files and optimize PC performance. However, in order to use its advanced security and optimizing features, you need to buy the premium version of the product. 

Download Now

8. IObit Advanced SystemCare

“Best Windows 10 PC optimization tool to clean junk and protect online privacy”

IObit Advanced SystemCare

IObit Advanced System Care is one of the best Windows Optimizers available in the current industry. It is not cluttered or adorned with various things. It is not complicated at all and has an easy user interface, with a very straightforward means of accessing it. It makes the processing of the system fast and proficient in skills.

Key Features of IObit Advanced SystemCare:

  • It has advanced tools to clean the registry.
  • It keeps a check on the processing units and Disk conditions of the PC.
  • It maintains a startup item to give you a faster PC response.
  • It protects your personal data.


  • Increases your internet speed
  • Supports all Microsoft Windows editions
  • It offers lots of tempting and superior features for a very reasonable price
  • Real-time performance monitoring


  • Displays ads to promote other tools
  • Requires you to install additional programs to use its advanced features

The Final Verdict 

If the above shortcomings do not seem bothersome, then IObit Advanced SystemCare is, without a doubt, among the best free system optimizers that you may use in 2021.

Download Now

9. Kromtech PCKeeper Live

“One of the best PC optimizer to sweep junk files”

Kromtech PCKeeper Live

Kromtech PCKeeper Live is one of the best free PC optimization software which removes all the unnecessary files from the PC and makes your software run faster. PCKeeper is the one-stop software solution for keeping your PC in a wonderful state and safeguarding it from threats, both online and offline. With this, in one button click all system problems, viruses, malware and security vulnerabilities will be fixed.

Key Features of Kromtech PCKeeper Live:

  • It has customized fixes specialized by a technician for every customer.
  • It also provides an anti-theft feature.
  • It cleans and wipes out junk from the registry efficiently.
  • It has an easy and interactive interface.


  • Anti-theft security feature
  • Boasts a dedicated duplicates finder tool
  • Easy to use interface
  • Permanently deletes sensitive data using its file shredder


  • Software license limitations

The Final Verdict 

Despite minor teething troubles, PCKeeper is among the best tools for PC optimization and maintenance.

Download Now

10. IOLO System Mechanic

“A power-packed PC optimizer for Windows 10”

IOLO System Mechanic

With a name that is unheard of, IOLO has a completely different trajectory in the market. It is very spread out in the world. IOLO can detect and remove up to 50 types of junk files, making it one of the best PC optimizer software. It provides an 89% faster startup and fixes over 30,000 PC problems. Its statistics reveal its high efficiency to boost the system speed and enhance system performance. It also unleashes internet speed and increases drive speed.

Read More: Top 10 Best Video Editing Software for Windows

Key Features of IOLO System Mechanic:

  • It removes bloatware and Identifies unwanted startup programs that slow you down by launching and running without your knowledge.
  • It retrieves many lost and accidentally deleted files including photos, videos, and documents.
  • It guards and wipes out your most sensitive data with military-grade data wiping technology.


  • Removes bloatware from your PC
  • Gives you a smooth gaming and video streaming experience
  • Frees up disk space by clearing out hidden junk files
  • Offers a variety of Windows optimizing tools, including privacy
  • Helps you take a backup of Windows 10 registry


  • The interface looks a bit cluttered because of too many options
  • It doesn’t provide detailed scanning reports
  • Need to upgrade to its pro version to unlock advanced features

The Final Verdict 

The presence of numerous system maintenance tools makes it one of the best free PC speed up software that you may use. However, if well-organized interface and detailed scan reports are among your top priorities, then we would recommend you to consider using other optimization tools mentioned in this list.

Download Now

11. AVG TuneUp

“An impressive PC performance optimizer for Windows”

AVG TuneUp Optimizer Software

AVG TuneUp, previously called AVG PC Tuneup ranks among the best PC optimization software in the world right now.

If you’re looking to boost your system speed and performance, AVG TuneUp is what you need.

Key Features of AVG TuneUp:

  • Automatic Maintenance tool to speed up your Windows PC.
  • Browser Cleaner for a much faster and lighter browsing experience.
  • Software Uninstaller to help you get rid of unwanted programs.
  • Software Updater to help you keep all your programs up-to-date always.
  • Remove junk files and program leftovers to free up valuable disk space.


  • Fast and user-friendly interface
  • One-click Windows system repair tool
  • Real-time monitoring and battery saver
  • Lightning fast web surfing experience
  • Helps you update outdated programs with one click


  • Sometimes fails to detect hidden unwanted files
  • PC Cleaning and optimizing process takes a long time

The Final Verdict 

AVG TuneUp comes loaded with myriads of cool maintenance and optimization tools, i.e., Software Updater. If the aforementioned cons don’t bother you, then you should definitely try this remarkable PC tune-up utility.

Download Now

12. Glary Utilities Pro 5

“One-stop solution to boost PC speed and clean up junk files”

Glary Utilities Pro 5 - Best PC Optimization Tools

Glarysoft’s Utilities Pro 5 with its beautifully designed interface and powerful PC optimization tools has gained huge popularity across a wide spectrum of Windows users.

If you’re looking to take your PC performance and speed to the next level, then Glary Utilities Pro 5 could turn out to be the best PC optimizer software for your Windows machine.

Key features of Glary Utilities Pro 5:

  • Optimize your PC for better performance with more than 20 advanced system utilities.
  • Privacy Protection to keep your personal data safe from prying eyes.
  • Cleans registry and fixes frustrating freezing and crashing problems.
  • Easy-to-use automated tools with one-click functionality.


  • Simple and clutter-free interface
  • Automatically checks for available software updates
  • Makes your computer cleaner and more secure
  • Helps detect and remove malware infections


  • It hardly increases the speed of your computer

The Final Verdict

After taking all the features, benefits, and drawbacks into consideration, we can say that this free PC optimizer is worth a shot. The features such finding and removing malware threats and checking for latest software updates weigh more than its cons.

Download Now

13. Razer Cortex

“Best Windows 10 optimization tool for all the gamers out there”

Razer Cortex PC Optimizer Software

Here’s another one of the best PC optimization software that you must try if you’re an avid gamer. Razer Cortex brings all the powerful game booster and system optimizer tools in one place to unlock your system’s best performance.

Razer Cortex seamlessly clears junk files such as cache, tracking cookies, temp files, and residual data to free up valuable space for better system performance.

Key Features of Razer Cortex:

  • All-in-one, automatic utilities for game and system optimization.
  • Cleans unwanted junk files automatically and makes your device faster and cleaner.
  • Speeds up gaming and system performance.


  • Frees up RAM on your PC for playing games
  • Comes with an user-friendly interface
  • Releases hard disk space
  • It provides frames per second (fps) stats


  • .Net Framework is necessary to use Razer Game Booster

The Final Verdict

If you’re an avid gamer, Razer Cortex is one of the best free system optimization tools that you can find on the web to optimize your computer for gaming and boost FPS.

Download Now

14. Microsoft Total PC Cleaner

Microsoft Total PC Cleaner

Keep your PC clean and clear with Microsoft Total PC Cleaner. Total PC Cleaner lets you clean your PC’s cache and big files. It is a completely free cleaning tool. It optimizes almost an overall system. However, it only supports Windows 10 or above versions. With this cleaning software, you can also remove duplicate pictures. It optimizes the memory to release a large part of your disk space. 

Key Features of Microsoft Total PC Cleaner:

  • Cleans junk or temporary files.
  • Speed-up the overall performance of the system.
  • Finds and deletes duplicate pictures too. 
  • Removes large files and PC’s cache.


  • Accurate and fast scanning
  • Simple user interface
  • Deletes duplicate pictures


  • Not compatible with the older version of Windows like XP, and Vista

The Final Verdict

In our view, this software is one of the best and reliable PC optimizer software that you can use absolutely at no cost. Total PC Cleaner can detect those files that aren’t used for so long, and removes them too. If you are using Windows 10 or later versions, then you can opt for this software.

Download Now 

15. PC HelpSoft PC Cleaner

PC HelpSoft PC Cleaner

Protect your computer with PC HelpSoft PC Cleaner. It comes in both variants i.e, free or paid. The free version offers only limited access to its features. Contrarily, the paid version offers unlimited access to all the features. PC Helpsoft PC Cleaner is available in a paid version starting at $9.99 per month. Plus, highly capable of fixing the other Windows 10 related issues. With this tool, you do not need to install the duplicate finder and remover software. It will delete the duplicate pictures too. 

Key Features of PC HelpSoft PC Cleaner:

  • Eradicates the unnecessary files that are causing issues and slowing down the performance level. 
  • Automatically locates and fixes the Windows 10 issues.
  • Lets you clean your system from unwanted files in just a click. 
  • Protects your personal data and online activity. 


  • Enhance performance level
  • Improve storage space
  • User-friendly
  • Quick and easy installation
  • Cleans Junk files


  • Doesn’t supports the older version of Windows

The Final Verdict

After detecting every bit about this cleaner tool, we can say that this is the best PC Optimizer software for Windows 10. However, if you are accessing an older version of Windows like 7, Vista, or XP then it is not your piece of cake.

Download Now

Frequently Asked Questions – PC Optimization Software

Q1.  What is a PC Optimizer?

PC Optimizer is a piece of software that comes in handy when your computer takes ages to function tasks or is taking tons of time to respond. It simply detects the hard drive for any unwanted data and frees up the storage space. This way, your computer becomes more efficient and has a faster speed.

Q2. Which is the Best PC Optimizer Software for Windows?

There are many Windows PC optimizers out there that boast about their features and their excellence. Very few of them actually are the best. Our observations show that the best optimization software for Windows available in the current marketplace is none other than CleanMyPC. It features, ‘Junk and Privacy Scan,’ ‘Invalid Registry Scan,’ and ‘Web Protection’ all in just one software. It boosts your system speed and recovers disk space in just a few minutes.

Q3. Is PC Optimizer Safe?

You might think that PC Optimizers are a huge scam, but that’s not the case. If downloaded and installed from a legitimate source, PC Optimizers become your computer’s new best friend. They detect all the unwanted files and junk and make your PC run like new.

However, there are equally badly-behaving optimizers that are built with amateur code, have malware, or are utterly ineffective. They are usually the ones found for free on the no-name websites. They are the ones you need to beware of.

Q4. How to Get the Best PC Optimizer Software?

To get the best free PC optimizer, simply go to the official site of the optimization tool, download the software and install it in your system. After installation, let the software scan your computer hardware for any infections or junk items. Finally, click on ‘Fix All Items’ to give your PC that much needed a boost.

Breathe Life into Your Old Computer with Best PC Optimization Software

And there we have it. These are the best PC optimizer software available for Windows in 2021. These Windows optimizer tools will surely aid your system by cleaning out all the junk and giving it the speed boost that it needs. So, what are you waiting for? Get the best-suited PC optimization tool for yourself and start the adventure of optimizing your lagging system.

Diksha Lalwani
Diksha Lalwani is an aspiring content marketer and a self-declared bibliophile. An English honors graduate, she likes to keep up with the recent happenings around the world and form an opinion. Her interest in anything and everything tech made her follow the path into becoming a technical writer.

Comments ( 29 )

Leave a Response

Related Posts