I have 3 virtual Exchange 2010 servers on Win 2008 R2 (1 Hub Trans/CAS and 2 MB) that haven't been patched in over a year. They all have SP3 but the total updates are sitting at 79.
I am interested in opinions on how to patch these with minimal risk. I am thinking, stopping all exchange services, snapshotting just in case and patching.
I might be over thinking this though. Is snapshotting worth it? Would I have a mess if I had to revert to an old snapshot if the updates tank the server?
Thanks!