Step 1: Determine which servers constitute half of the collection for the initial phase of the upgrade.
Step 2: Modify settings on these selected servers to prevent new user connections by disabling the “Allow New Connections” option.
Step 3: Ensure all user sessions are ended on the servers slated for upgrade.
Step 4: Unlink these servers from their associated collection.
Step 5: Carry out the enhancement to Windows Server 2016 on the identified servers.
Step 6: Concurrently, replicate the modification in Step 2 on the servers remaining in the collection to block new connections.
Step 7: Following the upgrade, reinsert the servers into the relevant collections.
Step 8: Extract the rest of the servers from the collection to ready them for the upgrade.
Step 9: Re-establish the ability to connect to the servers that have been upgraded by enabling “Allow New Connections.”
Step 10: Execute the outlined steps from Step 3 to Step 9 for the second group of servers to complete the upgrade cycle across all servers.