Issues Returning Rooted and S-Off'ed Device to Stock

I have a GPE ROM running device that's S-Off, bootloader unlocked and rooted, I'm trying to return it to completely stock but I'm having issues just getting it to run ADB and follow some steps -also some of these steps are conflicting so a link to an exact guide would be cool too- but I download the ADB and Fastboot drivers -through the minimal drivers download- along with the RUU I need, but my laptop won't recognize the device when I connect it over USB. Any help is greatly appreciated