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A bug in Windows 11 can claim up to 500GB of disk space.
The culprit is a Windows system file that just keeps growing.
The bug is fixed in the Windows June preview update and the July update.
Do you have a sneaking suspicion that your Windows PC is losing disk space? If so, it may not be your imagination, at least not if your system has been hit by a known bug.
A particular file in Windows 11 can grow to the point that the loss in disk space becomes noticeable. The culprit here is a system file named CapabilityAccessManager.db-wal, as spotted and described by Windows Latest.
Part of the Capability Access Manager Service, this otherwise obscure file manages the permissions granted to applications to access the camera, microphone, location, and other privacy-minded features. The db-wal extension indicates that this file stores any changes in a write-ahead log before they're written to the main database.
Also: You can soon restore Windows 11 from scratch even if it can't boot up - here's how
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