If you want to extend a boot partition on Windows 2003 you need to use 3rd party applications to achieve your goal. I have blogged about these tools. You can find the posts here:

In Windows Server 2008, this process is a lot easier and will costs you maybe 5 minutes of your time.

Open the Virtual Machine properties, select your VMDK and change the value:


Wait till the task is ready:


Open the Server Manager, go to Storage and Rescan the disks

Screenshot - 6_11_2009 , 9_44_36 AM_reg001

Right click on the volume and click on Extend Volume.


Follow the wizard:


After a couple of seconds and a refresh in the Windows Explorer, the partition will have it’s new size.


More info can be found here:


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