After successfully resizing a Windows Cloud Server, you will need to perform some additional steps in order to utilize the new disk space that is available for your server. In Windows Server 2012 you can merge the newly available disk space into one drive by expanding your original drive.
From the Desktop of your Windows Server 2012 Cloud Server, open the Server Manager and select Tools > Computer Management.
Under the Storage folder in the left pane, select Disk Management. In the left pane of Disk Management you will see the current formatted hard drive for your server, generally (C:), and you should also see an amount of unallocated space in the right pane. In this example we have a server with 40 GB of hard disk space that we have resized to 80 GB. That expanded storage space is the unallocated 40 GB.
Select the C:\ drive and right-click on it. Choose Extend Volume from the drop down menu.
This will open the Extend Volume Wizard. Click Next to begin the process.
To add all available space to your C:\ drive (Disk 0) you can keep the default selections and press Next.
You will now see the C:\ drive expand to the maximum available space. To finalize the modifications click Finish.
You will now see the additional disk drive volume that you created. Close Computer Management and begin using the additional space that you have just created. You can verify that the Extend process worked correctly by loading the Computer Manager fromthe Server Manager and checking the disk size for the C:\ drive in Disk Management.
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