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BoostSpeed 12
BoostSpeed 12 Free

Get more from your PC

BoostSpeed can optimize your Windows at a click of a button

Version | 30.3MB. Compatible with Windows 10, 11

14+ years

on the market

5-star awards

from industry experts

50+ million

user downloads

Auslogics Windows Slimmer

Windows Slimmer is part of Auslogics BoostSpeed. We designed the tool to remove unnecessary applications and system components from your PC to improve the efficiency of the Windows OS. As the name suggests, a slimmer operating system runs more efficiently than one that’s bloated with unneeded Windows applications, files, and other components.

What does Windows Slimmer Do

All users who have installed Auslogics BoostSpeed can access the tool although you will need the Pro version to activate some features. Windows Slimmer has options that allow you to clean up your Windows system by uninstalling unneeded apps and Windows components. The tool lets you remove Windows files (like system restore points and temporary Windows Update files) and protects your privacy by preventing data leakage.

Windows Slimmer is especially useful if you want to reduce high CPU and RAM usage on your computer. By removing items that are no longer useful to the Windows system, your computer can run optimally by allocating its resources to the currently active processes.

To access Windows Slimmer, you must install Auslogics BoostSpeed first. Once installed, launch the program and go to the All Tools tab. Look for the Windows Slimmer option under System Tools and select it. This opens a new tab with the One-Time Maintenance section selected by default. Under this section, you’ll find options to clean up your computer from obsolete Windows files and components for a more compact and efficient Windows system.

We recommend selecting one section at a time and then clicking the Start Scan button at the bottom of the page. This ensures that you take full advantage of what each section has to offer. After the scanning process is complete, select the Start Cleanup button to remove the selected files.

Once you're done with all the options under the One-Time Maintenance section, move to the Regular Maintenance section, which is available in the BoostSpeed 12 Pro version. Simply check all the boxes and click Start Scan.

Well, how to improve Windows 10 performance? To keep your Windows system running efficiently and optimally, run Windows Slimmer regularly. This tool helps you remove unneeded large files and create more space for other files. As you may know, your HDD space grows thinner every time you run Windows Update, download files, transfer files to your computer, install apps, and create system restore points (or when Windows creates them automatically). If the issue is left unattended, you may run out of hard disk space or Windows may become sluggish.

Windows Slimmer lets you safely remove large files that no longer serve any purpose in your Windows system.

How to Clean Up a PC from Unneeded Components and Applications

The One-Time Maintenance section lets you scan and delete outdated WinSxS libraries, Windows demo content, system restore points, and disabled components. These are some of the large files that you can remove from your system to free up more space on your HDD.

Select each section one by one and click Start Scan. The process might take longer in some sections and shorter in other sections depending on the size of the files being scanned. After the scanning process is complete, the tool shows you the results, including the size of the space that you’re likely to save. You can then proceed to remove the files by clicking the Start Cleanup button. Both the scanning and cleanup processes take from a few seconds to a few minutes depending on the size of files being scanned and deleted.

Note that when removing system restore points, all but the last three will be cleared. This ensures that you can restore your system to a previous state in case things go wrong.

Ways to slim Windows 10

To delete old OS files, run Auslogics BoostSpeed and open the Windows Slimmer tool under System Tools. In the next screen, you’ll see the old Windows version. Select it and then click Start Scan. Wait for the scanning process to finish and then you’ll see the size of the Windows files that you're going to delete. To proceed, simply select Start Cleanup.

The Regular Maintenance function gives you even more options to remove the obsolete Windows footprint from your computer by reducing the clutter of all the installed applications.

The different categories include Memory Dumps to delete memory dump files, CD/DVD Burning Cache Folder, to remove copies of files created when preparing to write to CD/DVD, Recycle Bin, to empty the Recycle Bin, Temporary Folders, to remove temporary files, and Application Logs to delete logs created by the applications installed on your computer.

In the Regular Maintenance section, you can scan each option individually or opt to scan all the options simultaneously by checking all the boxes and selecting Start Scan.

As you may have noticed, most of these files are the remnants of Windows applications, components, and updates. Removing them not only creates more space, but also helps keeping Windows stable and secure. To get a proper anti-malware protection, use Anti-Malware feature in Auslogics BoostSpeed.

Trusted by Millions of PC Users Worldwide

Windows users around the world are enjoying a faster and smoother PC experience
thanks to their computers being optimized with BoostSpeed.

Paul Cross
Clean & Mean
”I have been using Auslogics now for about 6 years & It has saved me from a lot of problems and helped to speed up my productivity which would otherwise have been spent trying to clean up the various computers over the years.”
Richard Bishop
I've used this for 3-4 years on both my...
”I've used this for 3-4 years on both my PC and laptop. The various performance enhancing utilities have been very useful to me, reducing clutter to improve overall system performance.”
Gary Phillips
The best collection of utilities to ...
”The best collection of utilities to automatically keep a windows PC running at top performance. Great user interface for a novice or pro.”

Industry Acclaimed

Auslogics software is recognized by leading IT magazines and online resources

Mark Oakley, Micro Mart (issue 1035, p.56)
"This system optimization tool suite takes an everything-plus-the-kitchen-approach to cleaning, optimizing, and potentially speeding up your PC. Auslogics BoostSpeed includes modules and wizards for just about any kind of tweak or optimization you can imagine..." Learn more "It is almost impossible to manually remove junk files and registry errors, but there are some handy tools out there that can do it for you. One of them is Aulsogics BoostSpeed. With this program you can maintain your PC at top speed with just a click of a button once a week." "To prevent system slowdown from happening, regular defragmentation of your disk and registry is recommended. You can defragment your disk with the built-in tool from Microsoft, however we recommend using the faster and more avdnaced version in Auslogics BoostSpeed." "Removing junk files manually can be a tedious process, but a nifty software from down under called Auslogics BoostSpeed can do it for you automatically. It will remove junk files and optimize the one-sit-fit-all Windows settings to your hardware. For additional speed boost it will fix registry errorrs and optimize your Internet settings." "Of all the optimisation tools I've tested over the past few years, I'm happy to write that Auslogics BoostSpeed is one of the most comprehensive and user friendly, ... I couldn't recommend it highly enough." "Speed up your slow computer and Internet with this Editor's Choice software." Learn more "BoostSpeed is an effective all-encompassing utility suite, combining some of Auslogics' popular freeware titles with services that they don't offer elsewhere... No doubt, BoostSpeed gives you your money's worth." Learn more "Another source of identity theft are files with sensitive information. Simply deleting them doesn't make them go for good. It's quite easy to "undelete" them and use in ways you probably will not be happy about. But if you delete a file, or a folder with Auslogics' File Shredder, you can be sure that they will be impossible to recover." "This meticulously written application is an ideal solution for anyone who wants to boost their computer for peak performance without costly hardware upgrades. BoostSpeed gives you a combination of 15 precision-engineered modules to clean-up and defragment your computer disks, fix registry errors and speed up internet connection." "Think of the best PC speedup suite you've tried. And then add more. More tools. More features. More depth, more extras, and more thought behind everything. That'll give you some idea of what to expect from this excellent program..." Learn more "All in one performance tool for your PC that is very easy to use." Learn more "Auslogics BoostSpeed will give you the ideal solution to keep your computer running smooth and fast." Learn more "Auslogics BoostSpeed can protect you from identity theft. Being a useful computer optimization tool, it also includes a number of very useful privacy and security applications. It offers advanced protection where anti-virus software can't help." "You can clean up, optimize and defragment your PC using Auslogics's OneButton Checkup. Tests showed an impressive performance improvement on a 4-year old laptop and its optimization techniques should work for a much newer computer, too."

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Version | 30.3MB.
Compatible with Windows 10, 11

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BoostSpeed 12

Diagnostics & essential PC optimization

Today’s price:

$50.96 (reg. $59.95)

1 year / 3 PC license

Essential PC cleanup & optimization
Advanced PC cleanup & optimization
Manual Internet optimization
Automatic Internet optimization for an ultimate connection speed boost
Basic privacy protection
Advanced privacy protection for all data stored on your PC
Browser Anti-Tracker to protect your online privacy
Context Menu Manager
Application Add-ons Manager
Basic registry cleanup
Game Mode
Full registry cleanup
Basic junk cleanup to free up disk space
Advanced disk cleanup options to maximize available space
Disk defragmentation to speed up data access
Intelligent Defrag to optimize file placement on drives for an even bigger speed boost
Scheduled disk defragmentation to maintain drive health
Scheduler for effortless regular scans and maintenance
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