Not Sure! but would probably be 10 GB max. and reading that Windows Home Server is based on Windows 2003 Server it might be a lot less around 5GB. For Headless you'll have to use Remote Desktop/ even can install the Windows Home Server Management console on your current system to manage the system, but i am not sure how i'll start the free download manager or torrent client through this console so i am sticking with UltraVNC and VNCViewervarkey said:How much space does WHS need for a deafult install? And can it be managed completely by a WebUI? As I will be using it completely headless.