Do you have any links to more info on this? I don't use System Restore and have never done a repair installation, so I'm wondering if it would be a concern or not. Oh yes, also forgot the important part, it blocks upgrades. This may mean some Windows Updates, but definately renders the inability to install a Service Pack. Info is included in the WAIK documentation, which is also available here: http://technet.microsoft.com/en-us/library...177(WS.10).aspx