Here’s the article in your usual format, keeping the technical details while tightening the flow:
Windows 11 May Not Actually Free Up Space When You Uninstall Microsoft Store Apps
Uninstalling apps from Windows 11 doesn’t always mean their files are completely removed from your PC. Microsoft has revealed that applications installed through the Microsoft Store can remain stored on the drive even after they appear to have been uninstalled.
MSIX Doesn’t Work Like Traditional Installers
Microsoft Store applications use the MSIX package format, which was designed to provide cleaner installation, updates and removal while avoiding the registry clutter associated with traditional Windows installers.
However, MSIX separates the process into several stages. An application can be staged onto the drive, registered for a user, deregistered and finally destaged, meaning its files are actually removed.
According to Microsoft Principal Software Engineer Howard Kapustein, removing an MSIX application only guarantees that it is deregistered. In other words, Windows makes the application disappear from the user’s system, but doesn’t necessarily delete its underlying files.
The App Can Be Gone Without Freeing Storage
This behavior exists because the same MSIX package may be shared between multiple users on a computer. Windows can therefore keep the package stored on the drive even after one user removes the application.
From the user’s perspective, the app is gone. From Windows’ perspective, however, its files may still be available for another user or another system process.
That means uninstalling a Microsoft Store app may sometimes provide no meaningful increase in available storage space. The application is no longer visible or registered for the user, but its package can remain on disk until Windows determines that it is safe to remove it completely.
For users trying to reclaim storage on a crowded Windows 11 PC, this distinction is important: “Remove” in MSIX does not necessarily mean “delete everything from the drive.”
