Hello, please excuse my noobness. I have do a lot of reading and still can't seem to be able to figure this out. Here's what I've done so far. I have a brand new ASROCK Z77 Extreme4 mobo and I heard from a friend that I can do a slic mod and load Dell OEM Windows 7 without activation. I downloaded an OEM iso image of Win7 and found the files to flash my mobo in the "All Slics 2.1 (Modded Bios List)" thread. I put the files on a USB drive and booted my computer for the FIRST time. I went into the ASROCK bios and slected "Instant Flash" within the bios. It did a search and found the file "Z77EXT41_SLIC.30" that I download from the above link. It did a successful flash and rebooted just fine. Next I did a new Windows 7 install using the OEM Dell disc (on a flash drive), and everything installed fine. However, the windows activation indicates "product key you typed is invalid for activation" Did I properly flash the bios? Are there settings I should change within the ASROCK bios? Does it matter that I'm using an SSD drive? Any help is appreciated.