AVG Signal Blog Performance Cleaning What Are the Best Free PC Cleaners in 2024?

Written by Domenic Molinaro
Published on July 1, 2021

Find the best PC cleaner for Windows

There are lots of PC cleaners out there. Some call themselves PC optimizers or tuneup software, while others describe themselves as system cleaners or repair software. But the goal is the same: to clean up your computer and make it quicker. The best PC cleanup software should do it all.

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    Though most quality PC cleaners offer a free trial, you’ll need to pay for the full service to clean your whole machine. Free PC cleaners often stuff their product with random programs, advertisements, and other bloatware. So if you follow a good guide to speeding up and cleaning up your PC, your machine should get better service than a free cleaner can offer.

    But for quality care, use dedicated cleaning software designed and built by professionals. Just like a car, your PC gets slower over time. Thankfully, strong cleanup software can throttle it back into gear.

    If a program claims to be the best computer cleaner, it should remove junkware and other pointless programs while making your browser and favorite apps load quicker. But what’s the best PC cleanup software? Keep reading to find out.

    Meanwhile, if you have an Apple machine, be sure to find the best cleaning software for Mac. And, while you’re at it, if your network connection is buggy, check out our guide about why your internet is so slow and how to fix it.

    Otherwise, here are the best PC cleaners for Windows, presented in alphabetical order.

    Note: The inclusion of any software here does not imply support or endorsement. Prices, features, data, and terms are all subject to change.

    AVG TuneUp

    AVG TuneUp gets your PC humming along on autopilot. Automatic Maintenance fixes your device weekly so you can shop, surf, game, and chat without a hitch. The PC cleaner tool unleashes massive hard drive space, while the browser cleaner tool unclogs your browser to make it more responsive. 

    The built-in Software Updater feature upgrades your favorite programs in a single click, the Registry Cleaner tool ensures your PC’s settings are correctly tuned, and the Sleep Mode feature saves battery and optimizes performance. And with a free trial, AVG TuneUp is one of the best PC optimizers around.


    • Free 30-day trial.

    • $49.99/year for one device.

    • $59.99/year for up to 10 devices.


    • Cleans each part of your computer with one click.

    • Boosts system startup and program speed for up to 10 devices.

    • Cloud-based learning monitors which programs to ditch.


    • Wealth of features may overwhelm less-experienced users.

    • Support available in English only.

    Give AVG TuneUp a spin today with a no-hassle free trial — see how it feels, and join the millions of people who’ve found an automatic PC mechanic they can trust.

    Avast Cleanup

    Avast Cleanup is one of the best cleaning software tools available today. Tidy up and restructure your hard drive with Disk Defrag, and keep it clean with automatic checkups from Disk Doctor. Dump unnecessary files with Disk Cleaner and sort out error messages, program crashes, and other Windows OS issues with the built-in Registry Cleaner tool.

    Get rid of all the annoying plugins, toolbars, and pre-installed programs you don’t want with Bloatware Removal. Add to all this an industry-leading company pedigree, and Avast Cleanup has a strong case for the best system cleaner of them all. And there’s a free trial, too.


    • Free 30-day trial.

    • $44.99/year for one device.

    • $59.99/year for up to 10 devices.


    • Automated service silently cleans in the background.

    • Streamlines your browser and boosts overall computer speed.

    • Frees up tons of space.


    • Scans can sometimes take a while.

    • Notifications about scheduled cleanings can be disruptive.


    The classic PC cleaning utility CCleaner has often been rated the best PC cleanup software in the past, and it still has plenty to offer. Tidy up your registry and clear out your temporary files, junk files, browser history, obsolete apps, and much more.

    Get the best Windows cleaner with tailor-made models for individuals, families, field technicians, and businesses. The basic version offers one of the best free computer cleaner experiences around, while CCleaner Professional adds real-time monitoring, file recovery, and deep-cleaning attachments.


    • Free basic version.

    • $19.95/year for the Professional version for one PC, with a free 14-day trial.

    • $34.95 for up to three PCs.


    • Award-winning business optimization.

    • Premium support on standby.

    • Privacy protection removes internet trackers.

    • Supports 55 languages.


    • Free version comes with bundled software, but you can opt out during installation.

    • Few customization options.


    CleanMyPC is an up-and-comer in the PC cleaner game, with a light touch and simple interface that’s great for beginners. Choose which programs to autorun and find unnecessary programs to uninstall. Clear your browsing and search history to speed up your browser. Remove extensions you don’t need, and shred files you don’t want anyone to see.

    Though it may not be on par with the heavy hitters just yet — and offers no free trial — CleanMyPC could be one of the best PC tuneup software options in the future.


    • $39.95 for one PC.

    • $59.95 for two PCs.

    • $89.95 for up to five PCs.


    • Intuitive interface.

    • Hibernation mode saves laptop battery.

    • Includes a file shredder feature for sensitive files and folders.


    • No free trial, and more expensive than competing options.

    • Doesn’t back up computer data in case of a mistake.

    • Limited info about uninstalled programs.

    Iolo System Mechanic

    Iolo System Mechanic offers tons of features to help tune up your PC. Program Accelerator promises to speed up your programs, while NetBooster targets your internet speed.

    Startup Optimizer tries to make system startup quicker, while Memory Mechanic focuses on optimizing your PC’s memory. ByePass even offers a password management solution. If you like variety and want fancy PC cleaning gizmos, Iolo could be the best system cleaner for you.


    • $49.95 for one PC.


    • Backs up your registry.

    • Helps explain your PC's problems to you.

    • Lots of features to play with.

    • 30-day money-back guarantee.


    • Jack of all trades, master of none.

    • Some users report increased ads after using.

    Iobit Advanced SystemCare Free

    Iobit Advanced SystemCare Free boasts an AI mode that makes a claim for the best PC speed-up software. It learns from your habits and computer performance to offer you a personal PC care plan, which (in theory) makes your PC quicker over time.

    Throw in a firewall shield, protection against online tracking, and a robust file cleaner to free up disk space, and you’re left with a solid PC cleaner package.


    • Free basic version.

    • $29.99/year for one PC.

    • $89.97/year for up to three PCs.


    • All-in-one scan.

    • Data protection.

    • 60-day money-back guarantee.


    • Doesn’t scan external hardware (like USB drives).

    • Upsells other products.

    • Needs additional tools for full service.


    With so many PC cleaning options out there, you might feel some congestion yourself. Let’s clear things up by answering some of the most common questions about PC cleaners.

    How do I clean my PC?

    You can clean your PC by clearing your browsing and search history, then uninstalling programs you don’t use. But it’s much easier and quicker to use dedicated PC cleaning software that can scan your PC, diagnose any problems, and fix them automatically.

    Is PC cleaning software for Windows safe to use?

    Yes, PC cleaning software is safe to use. But since a PC cleaner will need access to your whole system, make sure to get yours from a reputable company you trust. Check both professional and user reviews before making your decision.

    Some free computer cleaners will bundle their product with a bunch of bloatware that will clog up your PC even more. A quality antivirus can detect dangerous software, including any free PC cleaning software you might download.

    Which cleaner is best for a PC?

    AVG TuneUp is one of the best PC cleaners. This comprehensive PC cleaning solution offers an unmatched mix of power and simplicity: AVG TuneUp scours your whole computer and cleans it up in just a few clicks.

    Download one of the best PC cleaners: AVG TuneUp

    PC slowdowns leave many looking for the best free PC tuneup deal they can get. All sorts of junk can clog your machine, so you need an expert mechanic with the experience to match and the right tools for every job.

    AVG TuneUp's main dashboardTreat your PC to a professional cleaning with AVG TuneUp.

    AVG TuneUp tallies up your maintenance needs and fixes every problem one by one. Sleep Mode Technology gets every bit of juice out of the engine while Disk Cleaner frees up every bit of space. Software Updater keeps programs in tip-top shape, and Automatic Maintenance is on constant patrol.

    Give your PC the love and care it needs. Try some of the best PC tuneup software on the block and let AVGTuneUp turn your clunky computer into a well-oiled machine.

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    Domenic Molinaro