You missed the point. If Windows is installed on an UEFI system in UEFI mode then SLIC Toolkit's driver fails to detect the RSDT pointer and thus it can't detect SLIC. davidxxw is no more active in this forum; so no (possible) update from him. You may try RW Everything to detect SLIC.
Since when? I use it a lot & it has always worked. I do many win8 pro downgrades to win7 pro & use Slic_toolkit all the time with no issue. Legacy/UEFI/32/64bit - no problem. Here's a screen from a MSI notebook, uefi Win8 Pro installed (note product key has been removed): View attachment 22307 Anyway, cool, I wasn't aware of any issue.. So be it...