High disk activity from the Capability Access Manager Service (camsvc) is typically caused by a runaway app or process repeatedly triggering Location or Camera permissions, causing the database’s write-ahead log (.db-wal) to bloat. Stop the service, delete the bloated file, and adjust privacy settings to resolve this.

Immediate Fix: Clear the Bloated Database File

1. Stop the Service: Press Win + R, type services.msc, and hit Enter. Scroll to Capability Access Manager Service (camsvc), right-click it, and select Stop.
2. Delete the .db-wal File: Open File Explorer and navigate to C:\ProgramData\Microsoft\Windows\CapabilityAccessManager. Locate the CapabilityAccessManager.db-wal file and delete it (leave the main .db file intact).
3. Restart the Service: Return to the Services window, right-click Capability Access Manager Service, and click Start.

Prevent the Issue from Returning

If the .db-wal file keeps rapidly expanding, a third-party app or background process is constantly polling for permission data.

1. Check Privacy Settings: Navigate to Settings > Privacy & security > Location.
2. Disable Runaway Access: Turn off Location services temporarily, or turn off Let desktop apps access your location.
3. Update or Isolate Third-Party Apps: Check for running browser overlays, screen recorders, or chat applications that may be requesting excessive background capabilities.

How to gain access to folder https://pcpar.net/2022/08/23/grant-access-to-files-and-folders-with-icacls/