Software & Apps Backup & Utilities 24 24 people found this article helpful SlimCleaner Free v4.1.0.0 A Full Review of SlimCleaner Free, a Free Registry Cleaner by Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated on December 02, 2020 Backup & Utilities Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More Tweet Share Email SlimCleaner Free is a program suite that includes lots of tools, such as a registry cleaner, optimization tool, file shredder, software uninstaller, program updater, disk analyzer, defrag program, and more. The registry cleaning portion is very simple to use, it can run on a schedule, and it even backs up the registry automatically. Download SlimCleaner Free This review is of SlimCleaner Free version 4.1.0.0. Please let us know if there's a newer version we need to review. More About SlimCleaner Free Windows 8, Window 7, Windows Vista, and Windows XP are all officially supported, but we were able to use SlimCleaner in Windows 10 tooThe registry cleaning tool is found in the Cleaner > Registry section of the programThe program scans for issues in categories filed under shared DLLs, help files, installers, empty software keys, services, startups, and file extensionsInstead of scanning for errors and then repairing them, you can do so with one click called AutoCleanYou can right-click any registry issue and choose to ignore it so SlimCleaner Free will stop detecting it as a problemRegistry backups are created automatically and can be removed or restored back to the Windows Registry from the Registry > Backups section of the settingsA scan or a clean can be scheduled on a daily or weekly basis for any time of dayIt includes the ability to scan for viruses using VirusTotal via right-clicking filesYou can create a portable version of SlimCleaner Free by clicking Install Portable Version in the General tab of the settings. Just choose a USB device to install it on SlimCleaner Free Pros & Cons I have found things to both like and dislike about this program: Pros Not confusing to useBacks up the registry automaticallyIncludes many useful toolsComparable to similar registry cleanersCan be used from a portable device Cons Lots of other tools can get in the way of the registry cleanerResults of a scan aren't very user-friendlyMust "install" a portable version instead of download one from the websiteMight take significant time to install since it downloads installation files first Thoughts on SlimCleaner Free The first thing we noticed about SlimCleaner Free is that if you wish to run the registry cleaner apart from all the other tools, you must first deselect all the other options from the other cleaning tools. For example, you must remove the check mark next to the Windows, Applications, Browser, etc. sections and leave just the registry cleaner options selected. Avoiding this will clean all parts of your computer and not just the registry. However, while a little annoying, it doesn't take long to do. To see just the results of the registry scan, you have to right-click a registry issue from the results page and then click View Results. At that point, you can use the Clean button to erase them and everything else that was scanned. Another little thing we don't like is the way it deals with the results after removing registry issues. The results are shown just fine but the moment you click away from them, you can't return. Again, not a huge deal, but it's an inconvenience that should be mentioned. It's also too bad you can't download a portable version of SlimCleaner Free from their website. You instead have to "install" it from the settings. This is an extra step most other portable-enabled programs don't require. Despite those problems, it's still an awesome program because of its vast number of beneficial tools. The registry cleaner scans for a variety of problems and, in our tests, found around the same number of errors as similarly ranked registry cleaners. Download SlimCleaner Free Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Email Address Sign up There was an error. Please try again. You're in! Thanks for signing up. There was an error. Please try again. Thank you for signing up. Tell us why! Other Not enough details Hard to understand Submit