hi we have windows 2008 with SP1 with Exchange 2007. We have CCR and Roles are distributed so now we want to upgrade windows 2008 SP1 to Sp2 so what is the procedure to install it is there any best practice to do it safely.

Hi, The procedure is kind of the same as when installing Exchange Updates. Move the clusteredmailboxserver and the cluster group to Node2 when you are to patch Node1 and vice versa.Martina Miskovic

hi Martina thanks for your reply !! I will update you further once i finish the activity.

OK, Good Luck with the patching!Martina Miskovic