I am new to this so your help would be appreciated. I have spent few days reading these forums but still a bit confused I have Lenovo SL500_2746_P3G, details as below BIOS 1.24 (6AET58WW) ACPI Signature SLIC Table Description Software Licensing Description Table Memory Address BDDB0470h Table Length 374 bytes OEM ID LENOVO OEM Table ID TP-6A OEM Revision 00000570h Creator ID MSFT Creator Revision 00000097h SLIC Version 2.0 It came with Vista Home, in order for me to load OEM Windows 7, I need the SLIC changed to 2.1 So where do I get the marker and how do I change it so SLIC becomes 2.1? Many thanks