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It would be helpful to figure out which of the two things fix the search issue, or if neither do (give feedback to Desktop Admins).
- Delete HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Search
- Open PowerShell as Administrator and run:
Get-AppxPackage -Name MicrosoftWindows.Client.CBS | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
- Restart computer.