A Microsoft spokesman from the Licensing Dept told bit-tech that this would not be the case. He told us that Windows Vista will not require a system re-activation unless the hard drive and one other component is changed. This means that enthusiasts will be able to swap CPUs, memory and graphics cards out without any worry about having to re-activate with MS, either on the internet or by phone.Read more over here.
Should you change the hard drive and another piece of hardware - for example for a major upgrade such as a motherboard change that requires a re-installation - Microsoft will allow you to re-activate up to 10 times. You will not, however, be able to have more than one machine activated concurrently..
Windows Vista activation system explained
Posted on Saturday, Oct 28 2006 @ 08:55 CEST by Thomas De Maesschalck