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CCleaner Reviews

User Rating

4.7/5 (Based on 625 Ratings)

Rating Distribution

  • Excellent

    74.7%
  • Very Good

    22.6%
  • Average

    1.8%
  • Poor

    0.5%
  • Terrible

    0.5%

Do You Use CCleaner?

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Reviews
NI

Nijat I

January 8, 2026 Source: G2.com
Effortless System Cleaning and Optimization Made Simple
What do you like best about CCleaner?
CCleaner is a program that simplifies and optimizes system cleaning. With CCleaner, unnecessary files are easily removed. The tool is simple to use. There are no complicated steps to follow when using CCleaner to clean, optimize, and manage startup items. Additionally, the tool is regularly updated. It keeps up with changes in the computer system. It is a helpful tool for maintaining a computer's speed. It doesn't need technical expertise.
What do you dislike about CCleaner?
The free version doesn't have as many features as the paid version, so there are a few alerts and prompts that are repeated or not necessary. Some cleaning actions would need to be manually reviewed so as not to remove important files. Every once in a while, an update would change something in the interface that was odd. Generally speaking, it works well, but these petty annoyances pop up every now and then.
What problems is CCleaner solving and how is that benefiting you?
CCleaner removes clutter that slows down computers. The tool removes unnecessary files, which is an efficient way to free up storage. CCleaner also manages startup items, which enables fast system boot. Frequent cleaning minimizes system crashes and storage problems. The privacy tools in CCleaner are essential in deleting browsing information. CCleaner is an efficient tool that makes it easy to have a well-functioning computer.
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MC

Mark C

January 5, 2026 Source: G2.com
Flawless Performance and Features Across Windows and Android
What do you like best about CCleaner?
This product offers excellent features and functions flawlessly on both Windows and Android platforms.
What do you dislike about CCleaner?
There isn't anything I can point to that I dislike.
What problems is CCleaner solving and how is that benefiting you?
The drive optimization feature is useful and helps improve the overall performance of my system. I appreciate how it streamlines the process, making it easier to maintain my computer’s efficiency.
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VE

Verified User in Commercial Real Estate

December 9, 2025 Source: G2.com
Also, it finds and deletes files left when removing programms/apss which helps speed and disk quality, Speeds Up My System Effortlessly
What do you like best about CCleaner?
It speeds up my system even just using the free version
What do you dislike about CCleaner?
Need to be careful with registry clean but CCleaner makes it very clear you should use a back up.
What problems is CCleaner solving and how is that benefiting you?
Main thing it does for me is remove tracking cookies which is a huge help in many ways.
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AB

Anand B

April 8, 2024 Source: G2.com
Best software for PC health check and cleaning Cache
What do you like best about CCleaner?
Ccleaner is easy to use. It provides various functions like cleaning cache, updating drivers, cleaning hard drives. It is useful to ensure good health of our PC's.
What do you dislike about CCleaner?
I haven't noticed any downsides as yet. The software is excellent!
What problems is CCleaner solving and how is that benefiting you?
Cleaning Hard Drives, Clearing browser cache, updating PC drivers.
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SV

Shelby V

February 20, 2024 Source: G2.com
CCleaner is an amazing tool for all of my computer repairs
What do you like best about CCleaner?
CCleaner can remove registry errors, junk files and cleanup startup items all in one easy to use program. I even use it on my phone! The program is so easy to use that after I install it on customers computers to use, they are able to use the program on their own at home. Another pro is that if you have program files and folders that will not delete then you can add them through CCleaner as an exception and CCleaner will get the job done and remove them. That comes in handy when spam programs/viruses have been installed and the program files will not remove, CCleaner takes care of it!
What do you dislike about CCleaner?
I havent found any downsides to Ccleaner because it does so much in one single free program. I have not tried the paid version just yet though I soon will be purchasing it.
Recommendations to others considering CCleaner?
I recommend CCleaner to all home users and business users alike. Look no further, this program is going to be the best program for you! It has so many amazing things it can do.
What problems is CCleaner solving and how is that benefiting you?
I use ccleaner on every single computer repair I get in to clean out all of the registry errors on customers computers, their junk files that are piling up and even cleanup the startup items. I randomly came across CCleaner years ago and have not used any other program since. Ccleaner is my go to program always to remove the registry errors, junk files and cleaning up the startup items. I use it on our business computers weekly and I even use it on my phone.
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MI

Mario I

January 19, 2024 Source: G2.com
Manten limpio, optimo y a salvo tu pc con Ccleaner
What do you like best about CCleaner?
This is a free license program or Freeware created by Piriforms, which is aimed at facilitating the process of preventive maintenance and cleaning of our hard drive and operating system. It also takes care of keeping our PC clean of all unnecessary files on our equipment, allowing the system to be optimized by removing unused and temporary files. It also protects personal privacy by removing traces of visited websites and files we have opened, and in turn analyzes and corrects any errors and old entries in the system registry. It also checks old shortcuts in the start menu and on the desktop.
What do you dislike about CCleaner?
this type of programs can end up causing modifications in the system registry that may lead to serious errors if not handled correctly, to the point where it may be necessary to perform a complete reinstallation of the operating system. It is important to highlight that if used correctly, it does not have any disadvantages and is highly recommended to use.
Recommendations to others considering CCleaner?
Use this cleaner to keep your computer clean and fast, I recommend it because I have been using it for more than 4 years and it has been very helpful, and the best part is that it is very fast, lightweight, and easy to use.
What problems is CCleaner solving and how is that benefiting you?
Clean my computer and keep it safe from malicious or unnecessary files and cookies, as well as prevent my operating system from running slowly.
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HB

Heather B

June 20, 2023 Source: G2.com
Best Free Computer Cleaner I've Found
What do you like best about CCleaner?
Simplicity, ease of use, ability to customize what you're 'cleaning,' and I love the additional tools such as the software updater, uninstall options, and startup options.
What do you dislike about CCleaner?
It is constantly updating, which is good, but it gets a little tedious with how often I have to download the update. I also wish they would stop bundling their browser as an optional download during installation.
Recommendations to others considering CCleaner?
Definitely use this program if you need to clean up your computer; it's amazing.
What problems is CCleaner solving and how is that benefiting you?
I tend to save a lot of business documents and don't delete things regularly which slows my computer down. CCleaner gets rid of those issues and also provides additional tools to help speed up your computer.
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VG

Varsha G

June 15, 2023 Source: G2.com
System optimization and management
What do you like best about CCleaner?
CCleaner is an excellent PC management software with various features to boost its performance. It can help optimize system performance by removing unnecessary files, temp files, and invalid registry entries. You can free up disk space and improve the system's speed. CCleaner has tools to clean the browsing history, cookies, and temporary internet files, which can help protect your privacy and prevent unauthorized access to sensitive information stored on your browser. You can uninstall unwanted applications and manage startup apps, making the bootup time quicker and smoother. Using various options and settings, you can customize the cleaning process according to your specific needs. CCleaner is regularly updated to address security vulnerabilities and compatibility issues with new OS updates, ensuring that you have access to the latest features and improvements. Furthermore, CCleaner's ability to remove unwanted files and apps helps reclaim disk space, thus reducing the need for more storage devices and delaying hardware upgrades.
What do you dislike about CCleaner?
The only thing I dislike about Ccleaner is that it's not user-friendly for beginners. If it's not used carefully, it can remove files needed by specific applications and lead to functionality issues. Although it can help with privacy protection, it doesn't guarantee security as an antivirus software.
What problems is CCleaner solving and how is that benefiting you?
I use CCleaner weekly for clean-ups. It is part of my system maintenance routine to keep my PC optimized and running smoothly. While troubleshooting software, managing and uninstalling applications using CCleaner helps isolate complex software or conflicting dependencies. We also use it to benchmark system performance after specific software changes or optimizations, allowing us to measure the impact of our modifications on the systems. CCleaner has dramatically improved my productivity as it boosts my PC's performance. It has streamlined remote work as I use my PC for both work and personal use, thus increasing the number of unwanted files twofold.
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DP

Dhiya P

January 10, 2023 Source: G2.com
Vital to keep computer clean and smooth
What do you like best about CCleaner?
CCleaner is an all-in-one computer cleaning software with various tools to remove unwanted files and errors from the disk. CCleaner is a multipurpose platform with multiple features like Health Check, Performance Optimizer, Driver Updater, and Registry Cleaner. You can use the Health Check scan to see how well your computer is performing and what's causing it to slow. The Performance Optimizer shows you which applications are causing more load on your CPU, including start-up applications that launch and run in the background as soon as you turn your computer on. The Driver Updater is an essential tool that looks for new updates for all the drivers you use so that your system runs fast and is as secure as possible. The Registry Cleaner does an excellent job cleaning the registry by deleting old and unwanted values, broken paths and directories, broken thumbnails, etc. CCleaner is a collection of several features that collaboratively aim to help you maintain your computer's speed and overall performance.
What do you dislike about CCleaner?
I've not had any issues with CCleaner after using it for over a decade. I'd previously used it on my laptops as they would become slow over time. But with CCleaner, I've been able to keep both my desktop computer and my laptop as good as new by deleting unwanted files.
What problems is CCleaner solving and how is that benefiting you?
My colleagues and I have been working from home full-time since the beginning of 2020. Since we don't have access to office computers, we use our personal computers or laptops to work. In general, laptops are not built for long hours of continuous usage. CCleaner is an ideal software in these situations that aid in cleaning the system of any junk or unwanted files, thereby increasing its speed as no memory is allocated for these files. You also get a lot of storage space back from clearing them. CCleaner helps keep your PC as elegant as it was when you first bought it. It also scans for browser plugins, so you can manage them all in a single platform if you're a multi-browser user. CCleaner can also be used to find duplicates of files in your storage. CCleaner can also restore your system to a previous state if you've backed it up. I run CCleaner on my laptop every week when I don't work so that it can scan thoroughly throughout the hard disk to look for errors, fragmentations, corrupted files, etc.
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VE

Verified User in Higher Education

November 1, 2022 Source: G2.com
Mobile version is equally effective 12 yr user, Happy as ever
What do you like best about CCleaner?
1. Swift cleaning of cookies 2. Able to include or exclude multiple levels of scanning depth ...for example you could exclude scan (removal) of email client passwords since that one is used daily. 3. Strong registry cleaning 4. Paid version has a wonderful driver update version and thus is well recommended if your system is more than 2 years old (especially laptops)
What do you dislike about CCleaner?
Using since 12 years, no complaints as yet ;)
What problems is CCleaner solving and how is that benefiting you?
Privacy protection.
Read more

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