...bei mir ist der Registry Schlüssel nicht leer und SuRun trotzdem spontan. :
PS C:\Users\Kay> Get-AppxPackage *Microsoft.LanguageExperiencePackde-DE*
Name : Microsoft.LanguageExperiencePackde-de
Publisher : CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Architecture : Neutral
ResourceId :
Version : 17763.8.17.0
PackageFullName : Microsoft.LanguageExperiencePackde-DE_17763.8.17.0_neutral__8wekyb3d8bbwe
InstallLocation : C:\Program Files\WindowsApps\Microsoft.LanguageExperiencePackde-DE_17763.8.17.0_neutral__8wekyb3d8bbwe
IsFramework : False
PackageFamilyName : Microsoft.LanguageExperiencePackde-DE_8wekyb3d8bbwe
PublisherId : 8wekyb3d8bbwe
IsResourcePackage : False
IsBundle : False
IsDevelopmentMode : False
NonRemovable : False
IsPartiallyStaged : False
SignatureKind : Store
Status : Ok
Vielleicht gibt es da noch Nebenbedingungen.