LOL! Storage Bug on Microsoft Windows 11 Could Eat Up 500 GB Disk Space
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LOL! Storage Bug on Microsoft Windows 11 Could Eat Up 500 GB Disk Space
A Microsoft customer support agent even suggested buying a new hard disk instead of acknowledging the problem.
Sourav Rudra
07 Jul 2026<br>2 min read
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We are used to hearing about Copilot eating storage space on Windows machines, showing up in applications it has no business in, and generally being a nuisance for anyone who prefers an AI-free computer.<br>Now, we have a Windows log file that has been silently eating up space on people's storage drives, with a Microsoft customer support agent even suggesting buying a new hard drive when a user complained about it.<br>What happened?<br>The file responsible is CapabilityAccessManager.db-wal, a write-ahead log for the database Windows uses to track camera, microphone, and location permission requests. It's supposed to stay a few megabytes and clear itself out after about a month. Instead, it can balloon past 500GB, sitting in a folder Windows won't even let you open to check.<br>Original pic via Agumon_Hakase.The user who got the hard drive advice was Donald Gibson, who posted about it on Microsoft's Q&A forum in March 2026. His System and Reserved storage had ballooned to 111GB when it should have sat around 40GB, all thanks to a single 66.5GB CapabilityAccessManager.db-wal file eating up precious space on his 221GB drive.<br>When he contacted Microsoft support, the agent had never heard of the bug and had to loop in a supervisor before responding. The result was a suggestion to buy a new portable hard drive , and no help deleting the bloated file either.<br>This is not something new that has popped over the past few months, a Reddit thread from a year ago had the same file ballooning to 513GB on someone else's machine, with no folder anywhere to explain where the space went.<br>A quiet fix<br>The official fix didn't show up until June 29, quietly tacked onto the release notes under the "Change log" section for a preview update that had already shipped six days earlier.<br>But not everyone will have this now, as the full rollout is expected with the July 2026 Patch Tuesday update, which is well over a year after the first reports started showing up.<br>The same update also shipped a redesigned Start menu, a new point-in-time restore feature, and support for bigger local AI models, so it is not like Microsoft was short on engineering hours to spare.<br>Suggested Read 📖: Brave Says This is Not a Privacy Feature<br>Brave Says This is Not a Privacy Feature, But Using Containers Has Its Perks<br>Brave Browser 1.92 introduces support for Containers that isolate cookies and site data per tab.<br>It's FOSSSourav Rudra
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About the author
Sourav Rudra
A nerd with a passion for open source software, custom PC builds, motorsports, and exploring the endless possibilities of this world.
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