The Best PC Cleaner Software for Windows
Discover our top picks for the best PC cleaning and optimization tools for your Windows computer, both free and paid, and speed up your device the easy way.
Free up space and enjoy faster performance with our PC cleaner
Try Avast Cleanup Premium for free — no credit card needed. Clean up and optimize your device’s performance with our PC cleaner to help reclaim gigabytes of storage space and make your computer work better for longer.
Get your device back to running like new:
Clean out junk for more storage space.
Enjoy faster performance from your device.
Set up automatic maintenance.
Make your Windows PC cleaner and faster
Your PC isn’t getting any younger. Help optimize what’s slowing you down with Avast Cleanup Premium’s patented breakthrough technology.
Put apps to sleep.
Remove bloatware and forgotten programs.
Defrag and optimize your hard drive.
What’s slowing down my device?
The more programs you install and use, the slower your PC becomes for three main reasons.
Startup items
Many programs may run automatically when you turn your PC on, significantly slowing its startup time.
Background processes
Programs could be running in the background even when you’re not using them, hogging your PC’s memory and CPU.
Scheduled tasks
Some software may set its own schedule and can suddenly come alive, using up resources and slowing down your PC.
Help improve your PC’s performance with Sleep Mode
Our PC tune-up process detects performance drains and allows you to stop them, without making you uninstall programs or disrupting your PC’s performance.
Time to sleep
Switch on Sleep Mode to freeze any program that may be slowing you down. While asleep, it won’t use up resources.
Wake up
Launch the program you put to sleep, and let our smart algorithm automatically enable its background activity.
...and back to bed
Once you’re done using the program, we automatically put it back to sleep to help stop it from slowing you down.
The more programs you put to sleep, the fewer you’ll have running in the background, which can help optimize your PC’s performance.
Remove junk programs and bloatware
Identify bloatware and long-forgotten programs
Your PC could be slowed down by programs you haven’t used in ages or never wanted in the first place — trial versions, unwanted toolbars, or preinstalled software. These are a waste of space and speed, and may even be a security risk. Our Unnecessary Programs feature scans your PC for old apps and programs taking up significant space and lets you delete them more safely and without leftovers.
Clean up apps
Take the guesswork out of figuring out which programs you no longer need with our cloud-based reputation and unneeded-program detection systems. If you’re afraid to uninstall them, you can temporarily move apps to trash until you decide.
Defrag and care for your hard disk
Performance boost for your HDD
Defragmenting is a key factor in PC performance: It’s the process of re-arranging files on a hard disk for faster access. You’ll enjoy faster startup times, less loading, and snappier performance overall.
Care for your SSD
Our Disk Doctor scans your system disk for potential errors, including file system errors, data integrity issues, and access rights. If any issues are detected, it offers automatic fixes. It also detects SSDs (Solid-State Drives) that don't need to be defragged.
Give your PC a proper clean up
Running out of disk space? Avast Cleanup scans your PC from top to bottom to remove gigabytes of leftover junk files from hundreds of applications, browsers, and even Windows.
Clean up your browser.
Remove unwanted plugins and toolbars.
Free up space.
How do I get rid of daily clutter?
Every day you use your PC, it becomes cluttered with leftover files from Windows, your programs, or just from browsing the web. We’ve got the cure.
Browser Cleaner
Browsers can store records of your activity and personal information like cookies, browsing history, login credentials, or caches. Reclaim space and enhance your privacy as well as browsing speed with automatic cleaning of your browsing history in today’s most popular browsers.
Effectively remove bloatware
Bloatware refers to all the preinstalled software you don’t actually need and probably don’t want: apps you don’t use, distracting toolbars, expired software trials, and adware that plagues you with popups or may even spy on you. Avast Cleanup will deep-scan your machine to help root out PC bloatware.
Disk Cleaner
Run a deep scan for application leftovers that take up valuable storage space.
Installer files
Installations can be messy. They leave behind temporary files that clog up your hard disk.
Cache
Temporary files left on your disk by programs and Windows.
Temporary system files
Your operating system and programs create temporary files that are left on your disk.
Old backups
Restore points that the operating system creates to revert back to previous states.
Fix your PC problems
The quick fix for a tired PC, Avast Cleanup comes packed with tools for both novices and pros to address some of the most annoying issues, crashes, and freezes.
Enjoy automatic maintenance.
Clean registries.
Clean browsers.
Get help to fix hard disk errors.
What’s automatic maintenance?
Your PC accumulates a ton of wasteful data every day but we’ve got your back. Our automatic maintenance helps you regularly and automatically remove these junk files.
Clean up your browser and disk
Remove leftover cache files and traces from your browser, programs, and Windows.
Remove broken shortcuts
Clean up your desktop in seconds by deleting “dead” shortcuts you never use.
Clean up your registry
Registry issues can result in program crashes and error messages. We help you fix your registry automatically as part of Avast Cleanup’s regular maintenance.
Disk Doctor
Over time, your hard disk file and folder structure could become damaged, leading to data loss and crashes. Our Disk Doctor helps prevent errors and cure your disk. Here’s what we check:
File system errors
Your hard disk is structured like a book: An index pointing to chapters and pages. If this index is broken, your PC suddenly can’t find files or folders anymore. This can lead to missing files, applications no longer working or even Windows crashing. Our Disk Doctor checks for such structural errors and helps you fix them in no time.
Data integrity
Files on your disk can become corrupt for various reasons, such as sudden power losses. Our Disk Doctor detects such errors and helps to fix them.
Access rights
If you’re getting “You don’t have the privileges to access this file” (or similar) messages, then the access rights of files and folders got messed up. This can happen after an update, the installation of an application or even after a virus attack. Disk Doctor checks for such errors and tries to cure them.
Update your programs automatically
Outdated programs can leave your PC vulnerable to bugs, crashes, and security risks. Our Software Updater regularly checks for updates to your programs and allows you to automatically install newer versions if you wish.
Helps prevent security risks
Attempts to fix bugs
Provides the latest features
Why do I need software updates?
Software updates can be critical to keeping your PC running smoothly and safely. Here’s why you shouldn’t ignore them.
To avoid security risks
Outdated programs can leave your PC vulnerable to security risks. Our Software Updater helps patch security holes for you, saving you the hassle of finding, downloading, and installing the updates yourself.
To fix bugs
Bug fixes are part of many updates, so Software Updater helps you enjoy your software with fewer annoying crashes and error messages. We support the most popular applications, such as Adobe Reader, Skype, VLC Player, and WinRAR.
To get the latest features
New updates often bring new features. For example, VLC Player 3 added support for up to 8K and HDR video — something you’d miss if you never updated. Our Software Updater can automatically install the updates for you, so the next time you open your favorite app, any new features will be ready to go.
Experience the power of our PC cleaner and optimizer
Avast Cleanup comes with the tools you need to tune up your device:
Sleep Mode
Stop apps running in the background to free up your device’s memory and help it run faster.
Shortcut Cleaner
Removes dead shortcuts from your desktop and history lists across Windows and other applications.
Automatic Maintenance
Regularly cleans and tunes your PC for you — without you lifting a finger.
System Junk
Reclaim storage space by deleting leftover files from Windows and hundreds of the most common programs.
Registry Cleaner
Scans your Windows registry for issues and tries to fix them.
Browser Cleaner
Cleans up online traces, cookies, and temporary data from over 25 browsers, including Edge, Chrome, and Firefox.
Software Updater
Find and install software updates for the most popular applications in one place with just a few clicks.
Tuning Dashboard and Action Center
Offers a quick overview of your PC’s health.
Disk Defrag and Optimize
Helps you restructure your hard disk for faster file access.
Disk Doctor
Checks and helps fix and prevent errors on your hard disk.
Let’s talk numbers
Our 2019 Avast Cleanup release has exceeded expectations in our internal tests. Here are the numbers:
79%
Quicker start up*
Boot time measured in seconds using Microsoft Performance Toolkit
(Surface Book)
30%
Faster work performance
Score in points based on PCMark score, showing multitasking and multimedia abilities. The higher the score, the better.
(Alienware desktop PC)
71GB
Cleaned up
71 GB of space freed up after removing temporary files using Avast Cleanup’s Disk Cleaner.
(2012 Ultrabook)
* The results from our lab are indicative only. Your results may vary.
Boost your Mac and Android devices
Avast Cleanup for Mac
Think your Mac is clean? Think again. Our clean up tool for Mac helps you detect hidden junk files, large files, and even blurry or duplicate photos. Our app uninstaller quickly gets rid of apps and leftovers.
Avast Cleanup for Android
Detects leftover data, hidden battery drainers, and helps you organize your phone. We also detect blurry and poor photos for you to delete! Get more speed, space, and organization in a few taps.
Next generation tune up and clean up for your device
Get your device back to running like new:
Clean out junk for more storage space.
Enjoy faster performance from your device.
Set up automatic maintenance.
You may still be wondering...
How to install
Get protected right away by following these 3 easy steps:
Step 2
2. Open the file
Open the downloaded file and approve the installation.
Step 3
3. Install the file
Run the installer and follow the simple instructions.
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