What components of the PC are used to create the hardware hash?
For security reasons, Microsoft does not disclose the exact components or number of components used to create the hardware hash. How many components of the PC must change before I am required to reactivate? Are the changes cumulative? In other words, if I change one component today and one tomorrow, is that two component changes? Common changes to hardware such as upgrading a video card, adding a second hard disk drive, adding RAM or upgrading a CD-ROM device will not require the system to be reactivated. The changes are cumulative; however, if a user is asked to reactivate, the hardware profile is reset to that new configuration.