Please insert the device into a USB port and then browse to My Computer and identify the newly added drive. Browse the device's storage and set compatibility to the setup application to Windows XP and install it. Next go to Device Manager, locate the device in the list and use Properties followed by Update Driver. Browse the installation window to the path where drivers are installed (C:\Program Files\Idea Netsetter) and select the INF file manually. Proceed for every item in the Device Manager then restart the computer and that's it. Because you don't have compatibility in Windows 7 for this device, you will need to take this manual way of installing.