How to re-partition a hard disk under Vista or Server 2008 without having to re-install

Following my earlier post How to run Small Business Server (SBS) 2008 on a machie that's already running Vista/XP I thought it worthwhile to explain a nice feature of Vista and Server 2008 which enables you to dynamically resize disk partitions without loosing data.

All you need to do is to select "Disk Management" from the "Computer Management" tool (to find this simply type "Computer Management" from the Start Menu, select the partition you wish to Shrink (or expand) and use the right mouse button menu to perform the action - as long as you have sufficient space to make the change the system will go ahead and resize the partition for you. 

The image below shows you the interface as described above: