Now moving on to next step get the OEM certificate taking help of your friend Google. In case you don’t have version 2.1 you first need to get your BIOS updated. Run it and you will see the window indicating the presence of SLIC table 2.1 marked “ Dump OK ! ( DELLWN09_V2.1 )”. The first step is to check if your BIOS has a SLIC 2.1 table or not, and can be easily done using the SLIC_ToolKit can be downloaded using a google search. We will now learn how to get your copy of windows 7 genuine without compromising the security and system itself. Other method called the hardmod also exist which modifies the BIOS and may lead to complete system damage.
These methods involves Linux based loaders and sometimes may install trozens or other malware on your PC. Methods were developed commonly known as Loaders (also called the softmod) which involves loading the SLIC table in memory before the main OS loads thereby fooling the system with a fake SLIC table.
Now moving to next step, OEM-key and OEM-specific certificates were being cracked very early when a copy was leaked illegally from Lenovo, but the real hack was to bypass the SLIC table. A SLP 2.1 involves checking the presence of a matching OEM-supplied key, an OEM-specific certificate and the most challenging part of the puzzle an OEM-specific ACPI_SLIC table (SLIC 2.1 table) before it can activate. Both methods works similarly with only a change in marker in Windows 7 based PCs. There are files on hard disk when windows is installed which were being matched with the value from BIOS for verification, if matched your copy gets activated. SLP 1.0 was cracked quite easily which demanded for a more complex system to be developed resulting in SLP 2.0 included with Windows Vista and SLP 2.1 shipped with Windows 7. This method uses an area of BIOS to store some identification data, in SLP 1.0 the version included with XP, this was simply the name of the OEM. With Windows XP a method called System-Locked Pre-installation (SLP) was devised. a need was felt to get windows activated right upon installation without going through all the annoyance. But with OEMs like Dell, Sony, Lenovo etc.
I will start with basics of how a copy of windows gets automatically activated when installed on OEM (original equipment manufacturer) based PCs, traditionally when a copy of windows is installed you have insert your license key and activate by verifying it with Microsoft via internet or by getting a confirmation id over telephone.