Windows 11 is Hiding This Folder From You | 250GB Lost
Your Windows 11 C drive is filling up on its own and it isn't your files. A hidden Windows 11 bug is eating your storage, and it's a single file buried in a locked system folder most people never find.
Some users have lost 66GB, 83GB, even over 250GB to it. In this video I'll show you how to check if your PC is affected, why you should never delete this file yourself, and the official Microsoft update that fixes it.
The file is CapabilityAccessManager.db-wal, and it lives inside a folder Windows won't let you open. It logs every time an app asks for your camera, microphone or location. On affected machines that log never gets cleaned up, so it grows until your drive is full.
Windows Storage settings won't tell you, and File Explorer reports the folder as zero bytes.
Microsoft confirmed the bug in the KB5095093 changelog on June 29, 2026, six days after the update shipped, buried in a collapsed section. This affects Windows 11 24H2 and 25H2 only.
Everything shown here is safe. No third-party tools, no paid software, no take-ownership commands, no registry edits.
SAFE CHECK COMMAND (read-only, changes nothing)
Open Command Prompt as administrator and paste:
robocopy "C:\ProgramData\Microsoft\Windows\CapabilityAccessManager" "%TEMP%\CAMCheck" /L /B /R:0 /W:0 /BYTES /NP
Look for the CapabilityAccessManager.db-wal line. A healthy file is only a few megabytes. If yours reads gigabytes, you're affected.
Chapters:
00:01 – Intro
00:45 – Where is it located?
02:05 – Using robocopy to check the occupied space
03:00 – Users cases of the issue
04:28 – Microsoft’s support page does not make sense
06:21 – What can fix the issue?
08:06 – Summary and important advices
WARNING
Do not take ownership of the CapabilityAccessManager folder and do not delete the file. Users who did have broken their Wi-Fi, lost saved network passwords, slowed their boot times to several minutes, and watched the file grow back anyway. Deleting it is not a fix.
DISCLAIMER
Create a System Restore point before making any changes to your system. Follow along at your own risk.
#Windows11 #WindowsFix #cleanCdriveWindows11 #PCControlLab