"Jake" <Jake@discussions.microsoft.com> wrote in message
news:B5E5D9BA-CADB-45C7-BC68-E0A0565823B1@microsoft.com...
> A simpler way to put it may be, why does ctrl+alt+del twice at the welcome
> screen, only work after restart or logoff.

Because nobody is logged in. It's a completely
different process than "switching users".