To Add Existing VMs to Proximity Placement Groups

Updated the document to Add existing VM to proximity group 
Updated "If you’re planning to create a placement group in an existing resource group, you need to ensure that the existing resource group is empty "

Author: v-hagovi

articles/virtual-machines/windows/proximity-placement-groups-portal.md

@@ -28,6 +28,7 @@ A proximity placement group is a logical grouping used to make sure that Azure c
 1. In the **Proximity placement groups** page, select **Add**.
 1. In the **Basics** tab, under **Project details**, make sure the correct subscription is selected.
 1. In **Resource group** either select **Create new** to create a new group or select an existing resource group from the drop-down.
+1. If you’re planning to create a placement group in an existing resource group, you need to ensure that the existing resource group is  empty 
 1. In **Region** select the location where you want the proximity placement group to be created.
 1. In **Proximity placement group name** type a name and then select **Review + create**.
 1. After validation passes, select **Create** to create the proximity placement group.
@@ -46,7 +47,30 @@ A proximity placement group is a logical grouping used to make sure that Azure c
 1. After it passes validation, select **Create** to deploy the VM in the placement group.
 
 
+# Add an Existing VM to Proximity Placement Group
+### Prerequisites
+1. If the VM is part of the Availability set, then we need to add the Availability set into the placement group 
 
+1. If there exists a VM already part of an Availability Zone in the placement group, then while adding a VM we need to ensure that the VM to be added is part of the same Availability Zone
+E.g. VM1 is in AVzone 1 and is a part of placement group, then if we’re planning to add vm2, then vm2 should be part of the same AV zone 
+
+1. Proximity placement groups cannot be used with dedicated hosts.
+
+#### Once this prerequisites are met 
+
+## Add VMs existing in an AV set into Placement group can be achieved by 
+1. Stop (Deallocate) all the VMs in the Availability set 
+1. Go to Availability set configuration 
+1. Select the Placement group and click save 
+1. Start the VMs 
+this will add the availability set along with all its VM into the Placement group.
+
+## Add Existing VM to Placement Group 
+1. Stop (Deallocate) the VM
+1. Go to the VM Configuration Blade 
+1. Select the Placement Group and Click on Save 
+1. Start the VMs
+This will add the Existing VM into a Placement group 
 
 ## Next steps