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Many report PcaWallpaperAppDetect error in Windows 11 24H2, but there’s a quick fix

It’s triggered by a scheduled task

2 min. read

Published onMay 29, 2024

published onMay 29, 2024

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If you justupgraded to Windows 11 24H2and have been persistently seeing thePcaWallpaperAppDetectRunDLL error, you are not alone. In the last 48 hours, I have seen several cases emerge across the globe.

The error message reads,

The pop-up appears frequently for most. And conventionalfixes for DLL errorsdon’t work this time around, as verified by manyWindows 11 24H2users facing the error.

Forums are filled with reports of thePcaWallpaperAppDetecterror

Forums are filled with reports of thePcaWallpaperAppDetecterror

Users who upgraded multiple PCs to Windows 11 24H2 are seeing the error across all devices, indicating that it’s triggered by an OS-related problem. We found several such reports in the Microsoft forum.

A user even took toRedditto report thePcaWallpaperAppDetecterror inWindows 11 24H2.

A task triggers thePcaWallpaperAppDetecterror in Windows 11 24H2

According toDypsis, a Windows Insider, the error is triggered by thePcaWallpaperAppDetecttask in theTask Scheduler, and deleting it fixed the error.

ThePcaWallpaperAppDetecttask can be found in the following path:Task Scheduler Library\Microsoft\Windows\Application Experience

As to what created the task, some suggest that it wasPowerToys, a set of free tools that allow you to customize Windows. However, I have never hadPowerToyson my laptop, and the task was still present. So, there’s certainly some confusion there!

Nevertheless, deleting thePcaWallpaperAppDetecttask will fix the error without affecting any critical OS-related operations.

This is amongst the first reported errors inWindows 11 24H2. I hope Microsoft identifies the underlying cause and patches it in the next build!

Did this work for you? Let us know in the comments section below.

More about the topics:24h2,Runtime Errors,Windows 11

Kazim Ali Alvi

Windows Hardware Expert

Kazim has always been fond of technology, be it scrolling through the settings on his iPhone, Android device, or Windows PC. He’s specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.

Long-time Windows user, Kazim is ready to provide a solution for your every software & hardware error on Windows 11, Windows 10 and any previous iteration. He’s also one of our experts in Networking & Security.

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Kazim Ali Alvi

Windows Hardware Expert

Kazim is specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.