Unter bestimmten Umständen kann es passieren, dass der Logon-Screen einer über XenDesktop 5.6 bereitgestellten VM nach einem WIN+L so aussieht:
Für das Ganze Thema existiert ein Workaround:
[HKEY_LOCAL_MACHINESOFTWARECitrixPortICADefaultCredentialProvider]
„DisableDefaultCredentialOverride“=dword:00000001
Anschließend Maschine neustarten und hoffentlich wieder glücklich sein.

Marco Klose works as a Technical Consultant, Architect and CTO focused on Application & Desktop virtualization as well as application delivery with the Citrix product portfolio. He is specialized in Citrix virtualization, Citrix networking and Microsoft products. He has +10 years experience and holds the latest Citrix certifications and is member of the Citrix Partner Expert Council EMEA (PTEC). Since 2021 he is also a Citrix Technology Advocate (CTA).