I am having Windows Vista Ultimate on my pc. On which I am trying to install Linkys Wifi USB adapter on the same. The adapter features a 2.4Ghz frequency and the most common wifi standard. But there is a problem with the installation. I checked in device manager. There was a issue with hardware. I tried updating the drivers also but even that did not worked. At the time of purchased that I checked properly the adapter is compatible with Vista. That does not looks like some kind of issue here.