Check with the mfg of the device you're using to connect to see if there's an update. Obviously you'd need to download it to another computer and pop it on a flash drive (or a cloud if you have one [Google drive is bad ass]) then install it on your internet less PC. 8.1 has had a ton of issues with devices working after the update. There was an entire line of HP laptops that would brick if you installed 8.1.