If you have arranged to have your virtual disk space increased for your Cloud VM you will need to expand the partition in Windows Server 2008 before you can make use of the space.
In the example below, we have increased the VMs 20GB disk by 10GB and will now go through the steps so that Windows recognises this new space.
1. Navigate the Start Menu and find Server Manager.
2. Find the Storage node, expand it and select Disk Management. Right click Disk Management and use either Refresh or Rescan Disks, both should work fine. When the refresh is finished, you should see the newly added extra 10 GB as unallocated space on the disk you expanded. In our case it's Disk 0, as thats the only virtual disk that is attached to this particular server.
3. Right click the c:\ volume, and select Extend Volume and the "Extend Volume Wizard" should appear. This is quite straight forward, but click next and you will be presented with a the tool that allows the volume expansion.
4. By default, the wizard will select all available space in the Selected column, but you can adjust those settings if you like. When you have done a selection you're comfortable with, click Next and a summary screen will appear outlining the changes you have made. If you are satisfied with your choices, click Finish,