It's the preview build. I have the problem on three different computers - one of them newly installed with everything at default settings.
Upgrade to 24H2 on one of the computers solved it, so it's only this preview. Will probably be solved on next Patch Tuesday (I hope).
Disable the task PcaWallpaperAppDetect, either manually via Computer management or via command line (as Admin):
schtasks /Change /TN "Microsoft–Windows–Application Experience-PcaWallpaperAppDetect" /Disable
Sad news for the future of Explorer Patcher - I guess this will mean the end.
https://www.deskmodder.de/blog/2023/08/05/windows-11-mit-alter-taskleiste-wird-zurueck-gebaut-microsoft-raeumt-auf/
(use a translation service from German to English if needed)
On the other hand we will get native...
Yes, actually WIN+W (widgets) as well (if one is into such stuff)...
I am looking at the source code myself but I bet Valinet will beat me with a solution.
I am totally on Valinet's side. The program description says loud and clear in several places that it is aimed only for the main releases and if it works for an optional D-release in between patch Tuesdays - consider it as a lucky bonus. Valinet could have waited until March 14th (next patch...
Calendar App version 16005.14326.21344 is now also broken in the "main" track, 22621.1344.
Neither repair or reset works.
In the Event Viewer you see:
Faulting application name: HxCalendarAppImm.exe, version: 16.0.14326.21344, time stamp: 0x63ed45a6
Faulting module name: Windows.UI.Xaml.dll...
As long as you can cope with the Win11 start menu, EP still works well for the taskbar (which is the most important if you ask me).
OBS I am talking about the EP preview version, 22621.819.52.2. That is the one to use.
I tried Start11 some months ago but I discovered that the program seem to insert a dll hook into explorer.exe for every other program start. The consequence was that the process explorer.exe occupied like 1+ GB RAM after an uptime of just a day (or possible two). Same behaviour on two different...
As you say - up until before version 22621.1105 the Win10 Start menu could be repaired by executing:
Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Not anymore so I am trying to accept using the native Win11 Start menu...