On a PC I run for years this stick. It was only under Windows 7 and Windows 8.1 respectively in the 64-bit version. For my laptop, Windows 7 operating system, I bought a second stick. This could be not only install. After contacting the manufacturer then the drive could be installed. However, no channels were found. The befindlicher already in use stick is plugged into the laptop and lo and behold, he found more than 1,000 stations. On TV connection could not lie. After further consultation with the manufacturer, I have exchanged the stick. The then delivered Stick has the same suffering as the Erstgelieferte. There are no channels found. Will give the stick back and refrain from satellite TV on laptop. My thanks to the hotline of the manufacturer for the excellent support and on Amazon for easy return.