Hi All, Can any one tell me how we can Proceed the Updates of Exchange Server, Whether we can go thru WSUS or from Live Updates. Also should we go for all Windows Update or Only apply Security and Critical Update. Thanks Mukesh

You can use WSUS if you like. Or you can use Microsoft Update. Windows Update does not update anything but Windows. How you switch to Microsoft Update depends on the version of Windows involved, but as you haven't said anything about versions, further information isn't possible. Service Packs must be installed manually. That applies to all versions of Exchange. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources