app permissions

Winsage
July 18, 2026
Microsoft has acknowledged a bug in Windows 11 related to the Capability Access Manager (camsvc) that causes significant storage issues for users. The bug leads to an abnormal increase in the size of the CapabilityAccessManager.db-wal SQLite Write-Ahead Log file, which typically should be a few megabytes but has been reported to grow to 70-80 GB, and in some cases, over 200 GB or even up to 500 GB. This growth depletes available SSD space without any new files being added by users. The issue was highlighted by a user on the Microsoft Q&A forum, prompting others to check their disk space and find similar problems. Additionally, Windows Storage Settings misreported capacity usage. Microsoft confirmed the bug and released a hotfix in the KB5095093 update, urging users to install it to prevent further expansion of the log file.
Winsage
July 15, 2026
Microsoft's July Patch Tuesday update addressed a significant storage issue for Windows 11 users related to the CapabilityAccessManager.db-wal file, which had been consuming excessive storage space, with reports of usage reaching up to 500 GB. The bug originated from the Capability Access Manager service, which normally allows the file to occupy only a few megabytes. Update KB5101650 was released to fix this issue, improving disk space usage for the file. However, it is unclear if existing oversized WAL files will automatically resize. Users are advised to check the size of their WAL file using the Command Prompt or third-party tools, and if it remains large, to delete it following the update documentation.
Winsage
July 9, 2026
Microsoft has acknowledged a bug in Windows 11 that causes the Capability Access Manager's write-ahead log file to expand indefinitely, potentially exceeding 500GB of storage on affected devices. This issue is addressed in update KB5095093, which includes builds 26200.8737 and 26100.8737. Users can manually install this update via the optional updates section of Windows Update or wait for its automatic rollout during the July 2026 Patch Tuesday. The Capability Access Manager manages app permissions and logs usage of privacy-sensitive features, but the WAL file continues to grow unchecked on affected systems. The file can reach sizes from 70GB to over 513GB. To check if a system is affected, users can check storage settings or use Robocopy to verify the file size. The update is available through the Optional updates section and will be included in the cumulative update on July 8, 2026. The excessive size of the WAL file can lead to critical storage shortages and related issues, but it does not compromise the security or core functionality of the permission system. Microsoft has not confirmed if Windows 11 26H1 Insider builds are affected.
Winsage
July 7, 2026
Microsoft has released an optional update, KB5095093, in June 2026 to address a storage issue affecting Windows 11 users related to the CapabilityAccessManager.db-wal file, which manages app permissions. Users have reported the file size increasing significantly, with some reaching up to 500GB, due to continuous logging of access requests and privacy controls. To install the update, users should go to Settings, select “Windows Update,” then “Advanced options,” and check for optional updates.
Winsage
July 6, 2026
A hidden bug in Windows 11 can consume up to 500 GB of storage due to the CapabilityAccessManager.db-wal file, which should only occupy a few megabytes but can grow significantly on certain systems. Users can check for this issue using applications like TreeSize or by executing a command in the Windows Command Prompt. Microsoft has acknowledged the problem and provided a fix in the optional June 2026 update, with a broader rollout planned for the July Patch Tuesday update. Users are advised not to modify or delete the file to avoid further complications.
Winsage
July 6, 2026
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.
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