Uninstall CCleaner. Microsoft explains why you no longer need third-party tools to clean Windows
Microsoft has explained how to enable automatic cleanup and where to find the “Clean up system files” mode.
Microsoft has explained how to enable automatic cleanup and where to find the “Clean up system files” mode.
Windows cleanup utilities have long been their own genre. Some install them to free up a couple of gigabytes, others just enjoy the feeling of a “cleaner” system. But Microsoft seems to want to remind everyone of the obvious: for basic computer cleanup, you don’t need any third-party “cleaners” or even branded optimizers.
The company points out that Windows already has built-in tools that can delete temporary files, caches, and other junk that gradually fills up your drive. We’re not talking about a “fresh install,” which resets everything, but about safely cleaning accumulated temporary data that takes up space and can grow to noticeable amounts over time.
The first and most convenient tool is called Storage Sense. It can automatically free up space on the system drive by removing what’s no longer needed—temporary files and Recycle Bin contents. It’s often turned off by default, so it’s worth checking the setting: open Settings → System → Storage and activate Storage Sense if it’s disabled.
Next, Microsoft reminds users about the classic Disk Cleanup tool. This is the utility that scans a chosen drive, e.g., C:, and lets you select what to delete. Importantly, it has a “Clean up system files” mode with administrator rights. This is where the “heavy” categories often hide, which can free several gigabytes, such as Windows Update components, delivery optimization files, DirectX shader caches, and other system leftovers.
However, there’s a caution: you should be careful with the checkboxes in Disk Cleanup. Microsoft has had issues in the past where it deleted the Downloads folder, which caused unpleasant surprises for users. Another option to watch closely is deleting system restore points and shadow copies—these are usually left untouched unless you have a specific reason, as they are useful for system recovery.
Finally, the company mentions manually cleaning temporary files in the Temp folder. Ideally, Windows deletes these after a task or application finishes, but in practice, some files sometimes “hang around” for months. Manual cleanup helps, and Microsoft’s support site provides step-by-step instructions on where to find the folder and how to clean it safely.
It’s worth noting the popular enthusiast habit of clearing the Prefetch folder at C:\Windows\Prefetch. Microsoft advises against this: these files actually help Windows run faster, and the space saved is usually negligible—tens of megabytes at most. So if your goal is simply to free up space, this “ritual” offers minimal benefit and potential harm.
Bottom line: if you use cleaners just to remove temporary files and cache, Windows can already do it on its own—for free and without any empty promises of “doubling your PC speed.”
