Paradox group have released a fully working crack for Windows Vista (see screenshot / details), which allows you even get all of the automatic updates just the same as any legitimate Vista user could. How does it work? Microsoft allows large hardware manufacturers (e.g. ASUS, HP, Dell) to ship their products containing a Windows Vista installation that does NOT require any kind of product activation as this might be considered an unnecessary inconvenience for the end-user. Instead these so-called ‘Royalty OEMs’ are granted the right to embed certain license information into their hardware products, which can be validated by Windows Vista to make obtaining further activation information (online or by phone) obsolete.
This mechanism is commonly referred to as ‘SLP 2.0’ (‘system-locked pre-installation 2.0’) and consists of the following three key elements. So the basic concept of the tool at hand is to present any given BIOS ACPI_SLIC information to Windows Vista’s licensing mechanism by means of a device driver. In combination with a matching product key and OEM certificate this allows for rendering any system practically indistinguishable from a legit pre-activated system shipped by the respective OEM.