I seen this post on the Gridseed 5 chip but dont see how to update custom INF file, please help
Once you have plugged in the device you'll need to go into the Windows Device Manager and install drivers for it. When prompted for the driver, select the INF file provided in the link you referenced. Note that you will need to disable driver signing in order to use it (this is different depending on the version of Windows but you can find instructions on Google).
For some reason Gridseed doesnt come with a driver, when you plug in the usb and look in the device manager nothing doesnt show up, so Im using STM32 Virtual Com Port to get my computer to recognize it, than I have to use Zadig to request the unit, and the only miner I can get the gridseed working with is CGminer