In this post, you’ll learn more about the Error Code 0xC00D2744 – NS_E_DRM_BACKUPRESTORE_BUSY that is returned when working with the Win32 Windows Media Format 11 SDK
Win32 Windows Media Format 11 SDK Error
0xC00D2744 – NS_E_DRM_BACKUPRESTORE_BUSY
Win32 Windows Media Format 11 SDK Description
You cannot begin a new backup process until the current process has been completed.