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Here's How to Check If Windows 11 Is Secretly Gobbling Up Your Disk Space
Winsage
July 8, 2026

Here’s How to Check If Windows 11 Is Secretly Gobbling Up Your Disk Space

Users upgrading to Windows 11 have reported a significant decrease in available storage on their C: drive, attributed to the Capability Access Manager process consuming excessive disk space. Microsoft has acknowledged this issue and released an optional update (KB5095093) to improve disk space management for the CapabilityAccessManager.db-wal file, which can grow to several hundred gigabytes instead of the typical few megabytes. Users can check the file size in the directory C:ProgramDataMicrosoftWindowsCapabilityAccessManager, and tools like TreeSize or the command prompt can assist in this process. The CapabilityAccessManager.db-wal file functions as a write-ahead log for application access requests to system components, and its abnormal growth indicates it is not being properly merged back into the main database.
Microsoft admits a Windows 11 bug is eating up to 500GB of storage, verify if you are affected
Winsage
July 6, 2026

Microsoft admits a Windows 11 bug is eating up to 500GB of storage, verify if you are affected

To check for excessive storage consumption in Windows 11, navigate to Settings > Storage > System & Reserved. A file named CapabilityAccessManager.db-wal can cause significant storage issues, potentially consuming hundreds of gigabytes. This file is associated with the Windows Capability Access Manager service, which manages app permissions for features like microphone and camera access. Normally, this file should occupy only a few megabytes, but reports indicate it can expand to sizes like 200GB or even 513GB. Microsoft acknowledged this issue in the release notes for Windows 11 KB5095093, stating that an update to improve disk space usage for this file is scheduled for July 14, 2026. To check if your system is affected, tools like WizTree or TreeSize can be used, or a command can be executed in Command Prompt to verify the file size. If the file is excessively large, it is recommended to wait for the update or rename the file to allow Windows to regenerate it, rather than deleting it.
Microsoft says, for once, Windows update isn't to blame for Galaxy Book4 laptops losing access to C: drive — the Galaxy Connect app was the culprit, and it's been taken down from Microsoft Store
Winsage
March 24, 2026

Microsoft says, for once, Windows update isn’t to blame for Galaxy Book4 laptops losing access to C: drive — the Galaxy Connect app was the culprit, and it’s been taken down from Microsoft Store

In early February, users of Samsung's Galaxy Book4 laptops reported storage issues, specifically error messages stating, "C: is not accessible," which locked them out of their primary drive. Investigations by Microsoft and Samsung identified the Galaxy Connect app, preinstalled on these devices, as the cause of the problem due to its interaction with Windows that revoked permissions. Reports of the issue surfaced before the February 2026 security update for Windows 11, which was initially suspected to be the trigger. Microsoft acknowledged the problem on its website about ten days prior to March 16, when it was marked as "externally resolved." To help affected users, Microsoft provided a recovery article and both companies removed the Galaxy Connect app from their stores, replacing it with an older version. Only users who experienced the issue need to take action to restore their systems.
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