8 best free PC optimization software for Windows 10

Matthew Adams
by Matthew Adams
Windows & Software Expert
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  • Over the years a PC might become slower and less reliable than it once was.
  • To breathe new life into your PC, you can use optimization software.
  • If you want to make your PC faster, we recommend reading our dedicated Optimization Software Page.
  • For more information and guides on the best Windows 10 programs, check out our in-depth Software Section
Windows 10 fix error software

Over the years a PC might become slower and less reliable than it once was. This can be due to invalid registry entries, lots of background apps, malware, a fragmented and full hard disk and more besides.

Although Windows already includes numerous system-maintenance tools to keep things ‘ticking smoothly,’ there are loads of PC optimization programs that can boost system performance at least a little with their hard disk and registry cleaners, disk defrag, RAM optimizers and startup tools.

The best PC optimization software includes a wide variety of system-maintenance tools and options, and these are a few freeware programs you can supercharge Windows with.


Best PC optimization software for your computer

How to choose a good PC optimizer? First of all, you will need to ask yourself what do you need it for. Below, we will answer to a series of questions like :

  • Which optimization software is user-friendly?
  • Can it optimize your Internet connection speed?
  • Does it make back-ups?
  • Can you defragment your drives with it?
  • Can it analyze your hardware?
  • Can an optimization software remove bloatware?

1. Restoro (recommended)

fix computer issues with restoro

Restoro is a one-click solution for optimizing your Windows 10 PC and keeping it running well over time. You start by performing a deep scan of your computer, where Restoro will analyze your system’s hardware and software and find all the issues it has.

Once the scan is complete, you can fix everything with one click or look at all the problems individually to determine which ones you want to fix. Additionally, once you’ve optimized your Windows 10 PC, you can let Restoro work in the background.

Moreover, Restoro offers the functionality of several software solutions in one package, making it easy on your system and a breeze to manage as you don’t have to keep track of several programs on your PC.

Should you encounter any issues, Restoro’s customer support staff is available to help you 24/7 and as an added benefit, you can try Restoro risk-free thanks to its money-back guarantee.

As mentioned, Restoro offers the functionality of several software solutions, so with just one program, you benefit from:

  • Virus removal and protection
  • Disk space analyzer
  • Registry cleaner
  • Replace or repair DLL files
  • Clear Windows errors
  • Real-time monitoring

Note: The program is also available in a free version, but if you want to enjoy its full functionality, then getting the premium version is your best choice.

Restoro

Restoro

Optimize your Windows 10 PC with Restoro to make sure it will run error-free and quick for a long time.


2. Iobit Advanced System Careiobit

PC performance issues are usually linked to either system mishandling or viruses, logic dictates that the best PC optimization tool would be one that has both speed-up tools and certain antivirus features.

Iobit Advanced System Care is one such program and is based on the popular IObit anti-malware engine.

This tool incorporates top antivirus capabilities, as well as the already proven comprehensive PC tune-up ability, thus providing protection against all kinds of security threats, system slowdown, freeze and crash without slowing down your system.

The program runs silently in the background without actually slowing down your system as other so-called PC optimization tools do.

More so, it also comes with a free version, and those that do not wish to continue with the subscription can always revert to it, without having to uninstall the program.

As for usage, the program is extremely intuitive, with the menu being arranged in a way that caters to both experienced users and beginners alike. All in all, the program is an excellent addition to anyone’s digital library, especially those that value performance above all else.

Download Iobit Advanced System Care

Note: The program is also available in a free version, but if you want to enjoy its full functionality, then getting the premium version is your best choice.


3. Iolo System Mechanic Professional

System Mechanic is one of the most highly-rated PC optimization programs for Windows. This has a freeware and Pro version that includes some more advanced modules with anti-virus, internet connection tweaker, Windows customization and search and recovery tools.

Nevertheless, the freeware version still has the essential maintenance tools to give Windows a genuine boost. Press the Start Download button on this web page to save System Mechanic’s installer to your hard disk.

System Mechanic has an intuitive and appealing UI design that includes most of the software‘s tools and options within a left sidebar. It gives you a system status overview (shown in the snapshot above) that highlights things that need fixings, such as registry issues, junk files or fragmented hard drive.

System Mechanic Free retains several of the essential tools from the full package. It has a junk file cleanup tool that does a system-wide scan to erase obsolete files.

It includes a registry tuner with which you can fix invalid registry entries, and that also comes with backup and restore options. With the software‘s startup manager users can remove startup bottlenecks to speed up boot times. In addition, you can also speed up Windows with System Mechanic’s RAM optimizer that defrags RAM.

On top of that, this utility has tools to fix invalid shortcuts, repair internet connections and defrag hard disks; and users can run multiple tools at once with its wizards.

Iolo System Mechanic is one of the 7 software products included in the comprehensive security, privacy and optimization package Phoenix 360. If you are interested, you should definitely take advantage of its current discount from $79.95 to $39.95.


4. CCleaner

CCleaner is award-winning PC optimization software with an extensive user base eclipsing two billion downloads. It has fairly thorough cleanup tools that don’t erase any more essential system files, and you can use this software to free up hundreds of megabytes of disk space, remove software, manage startup items and repair possible errors.

The freeware version of CCleaner might lack some of the scheduling, file recovery, and disk defragmentation tools included the Professional Plus package; but it still has a few handy options for system optimization.

You can add the freeware CCleaner to Windows, which is quite limited in actions and in customizing CCleaner’s work. But if you are interested in CCleaner-s full version – you can buy it here.

CCleaner’s primary tools are its hard disk and registry cleaners. It has flexible hard disk and registry cleaners that you can configure to delete a variety of more specific file and registry items.

The software also has extra settings that enable users to select specific folders or files to either delete or exclude from system scans. Another advantage of CCleaner’s hard disk cleaner is that it also enables you to clean up third-party software file items.

Beyond the HDD and registry cleaners, CCleaner’s tools might seem a little limited compared to some alternative optimization software. The freeware version doesn’t include any disk defrag, RAM optimizer, shortcut fixer, one-click maintenance option or much in the way of file management tools.

However, it still has a good startup manager with which you can not only remove startup items but also delete scheduled tasks and third-party software context menu entries.

CCleaner’s handy Browser Plugins tool enables users to quickly activate or deactivate browser extensions, apps and plug-ins. You can also search for and erase duplicate files with the Duplicate Finder tool.

So even if CCleaner doesn’t have the most extensive number of utilities, it’s still a handy Windows optimization program. Check out this Windows Report article for the full lowdown on CCleaner.


5. AVG PC Tuneupavg pc tuneup

Yet another PC optimization tool that is based on a very popular antivirus tool, AVG PC Tuneup. Incorporates all the protective tools of AVG antivirus with basic PC optimization tools that everyone needs in their PC.

It doesn’t matter if your PC is slowing down due to old age or simply there is a ton of junk files on it, AVG PC Tuneup will take care of it and make it run almost as if it were new again.

It allows you to:

  • Speed up your Windows PC
  • Remove junk files to free up space
  • Rid your browser of hidden files
  • Uninstall software you don’t need
  • Get all-round 1-click maintenance

As for the programs running in the background, they may be annoying but at the same time maybe you don’t want them removed. If that is the case, you can use AVG PC Tuneup to put them to sleep, and stop them from hogging any more resources.

However, there is also software that has no business son your PC, which you may know as bloatware.

AVG PC Tuneup knows how to deal with these issues, by cleverly detecting and removing them, even when other programs can’t.

All in all, AVG PC Tuneup can be considered a more elaborate refresh button for your PC, and a much more affordable alternative to buying new hardware.

Download AVG PC Tuneup

Note: The program is also available in a free version, but if you want to enjoy its full functionality, then getting the premium version is your best choice.


6. Ashampoo WinOptimizer

Ashampoo WinOptimizer is a stripped-down version of WinOptimizer 14. WinOptimizer 14 might have more extensive file management and system maintenance tools, but there are still plenty of options and settings to explore in the freeware version. You can add WinOptimizer trial version for Windows platforms from XP up by clicking here.

WinOptimizer Free has Drive Cleaner, Registry Optimizer and Internet Cleaner tools for system maintenance. Its One-Click-Optimizer provides a handy shortcut to run those tools simultaneously. The Drive Cleaner is flexible as users can create exclusion lists, add file filters and configure it to delete items to the Recycle Bin.

WinOptimizer’s Startup-Tuner is another more essential system maintenance tool with which you can disable Windows services and edit startup items. The program comes with a Task Scheduler for you to schedule optimization runs, and it also saves the most frequently used modules in Favorites for quicker access.

However, WinOptimizer isn’t just system maintenance software. It also includes handy Windows customization and file management tools. For example, the software has a Context Manager you can customize Windows context menus with.

The Icon Saver enables users to save Windows desktop icon arrangements. In addition, you can split up, encrypt and recover files with WinOptimizer’s File Splitter, File Encrypter and Undeleter tools. So WinOptimizer offers more tools than most optimization suites.


7. Glary Utilities

Glary Utilities is a cut-down version of the Pro package. However, there isn’t that much difference between the freeware and Pro version aside from Glary Utilities Pro’s automatic updates, free technical support, and extra scheduling options. There’s also a free portable version of the software you can run from external drives.

Glary Utilities is packed with more than 20 system tools to optimize Windows with. It includes all the more standard tools such as disk cleaner, registry cleaner, startup manager, uninstalls manager and disk defrag.

On top of that, this program also has less standard tools for removing malware, fixing invalid shortcuts, deleting empty folders, erasing duplicate files, splitting and joining files and even file recovery.

Glary Utilities enables users to run a custom 1-click Maintenance scan that incorporates a number of its tools, which can come in handy.

The program’s RAM optimizer enables you to select a more specific amount of RAM to free up with a slider bar. Glary Utilities also integrates with File Explorer so that you can select some of Glary’s file management options directly from context menus. Overall, Glary Utilities has almost all the tools you’ll need for PC optimization.


8. WinUtilities Free

WinUtilities Free is another all-in-one PC optimizer with a freeware and Pro edition, which has a $29.95 one-year subscription. The publisher reveals relatively little about the differences between the freeware and Pro editions of WinUtilities.

The UI design of both editions is almost identical, but the File Undelete, Task Scheduler and Duplicate Files Finder only work in the Pro version, which also has free technical support.

WinUtilities Pro also boasts a more effective registry scan engine and disk cleaner. Open this page and press the Download Now button there to save the WinUtilities Free installer to Windows.

WinUtilities Free has an impressive 25 modules that consist of PC optimization, clean up and repair, files & folders, registry and other system tools. In the optimization category, users can select Registry Defrag, Disk Defrag, Startup Cleaner, RAM optimizer and BHO (Browser Helper Objects) Remover tools.

The software includes a Disk Cleaner to remove junk data, Registry Cleaner to fix invalid registry entries, Shortcut Fixer and Uninstall Manager.

The software’s 1-Click Maintenance option incorporates most of the cleanup and defrag tools. WinUtilities Free has some useful file and folder and registry tools to split and merge files, analyze disk space, back up the registry and remove and restore context menu options and settings with.

The publisher has also packed all those tools within a clean and intuitive UI.


So those are 8 great utility software you can optimize Windows with. They provide RAM optimizers, disk and registry cleaners, startup managers, shortcut fixers, uninstall managers, duplicate file finders and disk defrag tools; and some of them also include additional Windows customization and file options.


FAQ: Optimization software for Windows 10

  • What does PC optimization mean?

PC optimization is a blanket term for cleaning leftover files from previous installations, cleaning the registry or deleting temp files and several other operations typically done by means of specialized software.

  • What is the best optimizer for Windows 10?

Whilst most optimizers will get the job done, we recommend Restoro as it provides better functionality than most other. It incorporates antivirus functionality and hardware-level scanning.


Editor’s Note: This post was originally published in February 2017 and has been since revamped and updated in April 2020 for freshness, accuracy, and comprehensiveness.