Windows Server 2019 – Windows search function not working

Refer: https://windowsforum.com/threads/windows-search-function-on-the-start-menu-not-working-windows-server-2019.336771/

Run the following PowerShell as an Admin:

Get-AppXPackage -AllUsers |Where-Object {$_.InstallLocation -like "*SystemApps*"} | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}