{"id":75399,"date":"2024-06-04T09:46:38","date_gmt":"2024-06-04T04:16:38","guid":{"rendered":"http:\/\/198.58.113.91\/blog\/?p=75399"},"modified":"2025-05-25T20:53:34","modified_gmt":"2025-05-25T15:23:34","slug":"pcawallpaperappdetect-pcasvc-dll-error","status":"publish","type":"post","link":"https:\/\/www.winhelponline.com\/blog\/pcawallpaperappdetect-pcasvc-dll-error\/","title":{"rendered":"PcaSvc.dll – Missing entry: PcaWallpaperAppDetect in Windows 11"},"content":{"rendered":"

After updating to Windows 11, version 24H2, you may see the following error message:<\/p>\n

Error in C:\\WINDOWS\\system32\\PcaSvc.dll\r\n\r\nMissing entry: PcaWallpaperAppDetect<\/pre>\n
<\/p>\n
\"pcasvc.dll<\/p>\n
An invalid task causes this.<\/p>\n
Resolution<\/h2>\n
The Windows Insider Team Blog has posted the following fix:<\/p>\n
After updating to Windows 11, version 24H2 (Build 26100.712), you may see an Pcasvc.dll error dialog pop-up with the message “Missing entry: PcaWallpaperAppDetect”. We’re working on a fix, but you can follow these instructions to mitigate the issue:<\/em><\/p>\n
    \n
  1. Type “Task Scheduler” in the search box on the taskbar to find and open Task Scheduler.<\/li>\n
  2. On the left tree view of Task Scheduler, click on the “Task Scheduler Library\u201d to expand the node.<\/li>\n
  3. Keep expanding the nodes by clicking on the tree view in the following order: Microsoft -> Windows -> Application Experience.<\/li>\n
  4. After clicking on the \u201cApplication Experience” node, find the task named \u201cPcaWallpaperAppDetect\u201d from the list view in the middle of Task Scheduler.<\/li>\n
  5. Right-click on that task, click \u201cDelete” in the pop-up menu. Then click “Yes” in the confirmation dialog box asking, \u201cDo you want to delete this task?\u201d.<\/li>\n<\/ol>\n
    Source:<\/strong> Releasing Windows 11, version 24H2 to the Release Preview Channel | Windows Insider Blog<\/a><\/em><\/p>\n
    Deleting or turning off the task via the command-line<\/h4>\n
    To turn off<\/strong> the task via Command Prompt (admin), run:<\/p>\n
    schtasks \/Change \/TN \"\\Microsoft\\Windows\\Application Experience\\PcaWallpaperAppDetect\" \/Disable<\/pre>\n
    To delete<\/strong> the task via Command Prompt (admin), run:<\/p>\n
    schtasks.exe \/delete \/tn \"\\Microsoft\\Windows\\Application Experience\\PcaWallpaperAppDetect\" \/f<\/pre>\n
    I hope that helps.<\/p>\n","protected":false},"excerpt":{"rendered":"
    After updating to Windows 11, version 24H2, you may see the following error message: Error in C:\\WINDOWS\\system32\\PcaSvc.dll Missing entry: PcaWallpaperAppDetect<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[869],"tags":[191,581],"class_list":["post-75399","post","type-post","status-publish","format-standard","hentry","category-windows-11","tag-error-messages","tag-task-scheduler"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":3005,"url":"https:\/\/www.winhelponline.com\/blog\/task-scheduler-error-no-longer-exists-corrupt-task\/","url_meta":{"origin":75399,"position":0},"title":"Error “The Selected Task ‘Name’ No longer exists” Starting Task Scheduler","author":"Ramesh","date":"April 24, 2016","format":false,"excerpt":"When a scheduled task gets corrupt, errors such as The selected task  no longer exists\u00a0or The selected task \"{0}\" no longer exists\u00a0may show up every time the Task Scheduler is launched. 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Start the task scheduler service and try again. Just as the error message instructs, starting\u2026","rel":"","context":"In "Windows 10"","block_context":{"text":"Windows 10","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/windows-10\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/w10\/w10-dfrg-err-storage-1.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":80392,"url":"https:\/\/www.winhelponline.com\/blog\/task-scheduler-service-started-stopped\/","url_meta":{"origin":75399,"position":2},"title":"Task Scheduler Service on Local Computer Started and then Stopped","author":"Ramesh","date":"March 3, 2026","format":false,"excerpt":"The Task Scheduler service may fail to start, and the following error may occur when you try to start it manually using the Services MMC in Windows 10 or 11. The Task Scheduler service on Local Computer started and then stopped. 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This happens if the program or script which the task was configured to launch, is missing.For example, here is a 414 event from the System\u2026","rel":"","context":"In "Windows"","block_context":{"text":"Windows","link":"https:\/\/www.winhelponline.com\/blog\/category\/microsoft\/windows\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/w10\/scheduler-414-err-2.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/w10\/scheduler-414-err-2.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.winhelponline.com\/blog\/wp-content\/uploads\/w10\/scheduler-414-err-2.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":10236,"url":"https:\/\/www.winhelponline.com\/blog\/task-scheduler-service-is-not-available-will-attempt-to-reconnect\/","url_meta":{"origin":75399,"position":4},"title":"Task Scheduler service is not available; will attempt to reconnect","author":"Ramesh","date":"July 8, 2019","format":false,"excerpt":"When you launch the Task Scheduler window, or when a specific task is run, the following error may pop up: Task Scheduler service is not available. 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