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Login to https://portal.azure.com with your Cornell NetId netId credentials. If the login process asks you, choose "school/work account", not "microsoft.com account".

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Azure VMs can exist in several states including “stopped” and “stopped (deallocated)”. Shutting down the VM from within the OS puts the VM in a “stopped” state. In that state you still accrue charges for the VM and for any OS and data disks. Putting the VM in a “deallocated” state releases the hold on the backend Azure host resources so once the VM is in that state you are not charged for the VM but you are still charged for the OS and any data disks. Here is some more information : https://blogs.technet.microsoft.com/uspartner_ts2team/2014/10/10/azure-virtual-machines-stopping-versus-stopping-deallocating/

What is the default size of a Windows Server VM's OS disk?

All Windows Server images at Azure are provisioned by default with a 128GB OS disk. Azure does not officially support shrinking the size of the OS disk. To provision a Windows Server with a smaller (32GB) OS disk, you need to select the OS image that is indicated as "smalldisk". Growing the OS disk can be done at any time after the VM is in a "deallocated" state. 

Fun Trivia

How to say Azure, Microsoft's Cloud Platform

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