
Put the pftB61D.tmp folder into C drive here:
Users/Custom/AppData/Local/Logitech

Then open that folder and follow the path: \2b-LGS-x64\Common64\Logitech\WMDrivers

Right click-> install on the wmjoyhid INF file

You should see "Logitech G27 Racing Wheel USB" in the Game Controllers panel of Windows.

Once it's installed, if ever it gets messed up again, usually you can just go:
Device Manager / Universal Serial Bus devices / G27 Racing Wheel / Properties / Driver / Update Driver / Browse / Let me pick / USB Input Device / Next

But if that fails (usually you can see by it being called only "G27 Racing Wheel" in the Game Controllers panel), go back to the original folder and re-install the wmjoyhid.inf file.

