Hi guys! For about a year ago I did a firware flash for my bios, slic 2.1 metod I think it was. Later I installed Win 7 ultimate OEM and installed the OS and did a permanent activation and everything went well. Windows registered my computer as a Dell-Computer with OEM Windows. Now I want to do a fresh install of Windows but are not sure witch Win 7 version to go for. Can anyone help me? The version I think is the correct one is "MICROSOFT.WINDOWS.7.ULTIMATE.RTM.X64.OEM-YOMOFOSHEREISOEM".