Versuchen Sie diesen Befehl in PowerShell, um PowerShell 2.0 zu installieren
Get-ChildItem "C:\Windows\servicing\Packages\Microsoft-Windows-PowerShell-V2-Client-Package*.mum" | foreach { dism.exe /online /norestart /add-package:"$_" }
Get-ChildItem "C:\Windows\servicing\Packages\Microsoft-Windows-PowerShell-V2-Client-Package*.mum" | foreach { dism.exe /online /norestart /add-package:"$_" }