Chinese to English instructions that aren't entirely helpful. There are two locations for the software. One is located in the item description in a link right in the product details and links to a digital file on Amazon. The other is on the little disc that may not be read by PC's. You have to install the drivers for the 58 thermal printer even though three drivers are on the disc. You also have to use the user manual to set things up. It doesn't automatically find the printer and assign a port like most printers. And last, you have to assign the correct usb port. If you aren't sure, choose port 1, try a test page. If that doesn't work, choose port 2 ....... One of them should work, if not, check to see if your printer shows up as online. You may have to select your printer as the default printer as well. It is definitely a pain to set up.