Remove-DesktopPool -pool_id "PoolName" -DeleteFromDisk -Force – delete image reference directly:
Introduction In virtual desktop infrastructure (VDI) and mobile device management (MDM) environments—especially those using Citrix , VMware Horizon , or Microsoft Intune/Configuration Manager —IT administrators often encounter the cryptic error: “Failed to unregister master image from MDM.” This message typically appears during image lifecycle management, when you attempt to remove, update, or recompose a master (gold) image from the MDM database. Left unresolved, it can block further provisioning, waste storage, and cause conflicts in future deployment tasks. failedtounregistermasterimagefrommdm
SELECT * FROM MasterImages WHERE ImageName = 'YourImageName'; DELETE FROM MasterImages WHERE ImageName = 'YourImageName'; For , run the following against the vCenter or Composer database: when you attempt to remove