How to fix PcaWallpaperAppDetect (PcaSvc.dll) error on Windows 11 24H2

It turns out that the PcaWallpaperAppDetect error was caused by a scheduled task failing. So, this guide will share a simple method to fix PcaWallpaperAppDetect (PcaSvc.dll) error on Windows 11 24H2 build.

Recently, Microsoft released the Windows 11 24H2 update in the Release Preview channel, long before it became widely available. Many people installed the 24H2 update immediately, but after a few days, they noticed the PcaSvc.dll error occurring every few hours.

Below are the steps to take.

To fix the PcaWallpaperAppDetect (PcaSvc.dll) error on Windows 11 24H2 build, open the Start menu and search for 'Task Scheduler' .

How to fix PcaWallpaperAppDetect (PcaSvc.dll) error on Windows 11 24H2 Picture 1 How to fix PcaWallpaperAppDetect (PcaSvc.dll) error on Windows 11 24H2 Picture 1

Next, open Task Scheduler and navigate to Task Scheduler Library > Microsoft > Windows > Application Experience .

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Once here, look for 'PcaWallpaperAppDetect' on the right.

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Now, right click on it and delete it. Click 'Yes' to confirm action. It is done!

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Above is how you can fix PcaSvc.dll error on Windows 11. As we know, the 24H2 update was withdrawn by Microsoft from the Release Preview channel due to performance issues. Microsoft said the new update will be rolled out in the coming weeks.