The process of resizing a NSv Azure virtual machine is summarized in the following steps
Log in to the Azure portal portal.azure.com with your credentials.
On successful login, select the Virtual Machine icon.
Select the virtual machine for resizing from the list of virtual machines displayed.
Select the Size icon in the left panel.
After clicking the Size icon in the left panel, the following screen displays.
Select the size you would like to resize to and click Resize beneath the screen. Before clicking resize, ensure that resizing is supported.
It takes some time to change the size. After you have finished, you can go to step 4 and check the updated size.