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Installing the Ardunino Mega Driver on Windows 7

Goal: Installing the the Ardunino Mega device driver on Windows 7.

The automatic driver install process for Windows 7 might automatically install a Microsoft Windows version of the Arduino Mega driver. This is not the driver LANforge expects. These instructions will guide you how through uninstalling an old driver and installing the new driver.
  1. You want to install the windows version of the LANforge Server beforehand.

    For more information see Installing LANforge Server on Windows

  2. This process requires you to operate the Control Panel as Administrator. Some patch-levels of Windows 7 have secured this. A useful work around for this will be discussed shortly.

  3. Getting to the Device Manager

    1. Start by clicking the Start Menu and typing control ENTER screenshot

    2. Select Hardware and Sound screenshot

    3. Select Device Manager screenshot

    4. In the Device Manager window, right-click on the computer and select Scan for hardware changes screenshot

    5. There will be an Other devicesUnkown Device entry. Right-click on it. If the options menu only gives you Scan for hardware changes or Properties, you might need to restart your control panel as Administrator, that is discussed next. screenshot

    6. If you have recently removed a driver, you might need to reboot your Windows system for it to complete the driver installation process.

  4. Using the Run as Administrator option to start the Control Panel in administrator mode.

    1. This works best with a CMD window pinned to the task bar. You can do that using Start MenucmdENTER; and then right-clickPin to Task Bar option on the task bar icon for the cmd.exe window.

    2. Then right-clickRun as Administrator on the cmd taskbar icon screenshot

    3. Repeat your navigation steps to get to the Device Manager

  5. If you find a previously installed driver, uninstall it. Especially if this is labeled Windows Arduino Mega

    1. Right-clickUninstall screenshot

    2. Select Delete the driver software for this device, and click OK screenshot

    3. Right-click on the computer, and select Scan for Hardware Changes

    4. You might need to un-plug and plug-in your Attenuator.

    5. If the right-click options menu does not allow you to change drivers, reboot your system.

  6. Install the LANforge Arduino Driver

    Depending on your version of Windows, you might not find the driver file using the Browse my computer choice, you might find it using the Automatically Search choice.

    1. In Device Manager, you want right-click on the Unknown Device and select Update Driver Software... screenshot

    2. Option 1: Select Search automatically for updated driver software:


      1. Click on Let me pick from a list of device drivers on my computer screenshot

      2. You see a list of drives. Click the Have Disk button: screenshot

      3. Enter C:\Program Files (x86)\LANforge-Server. Click OK. screenshot

    3. Option 2: Select Browse my computer for driver software:


      1. Browse to C:\Program Files (x86)\LANforge-Server and click Next screenshot

      2. This is not a signed driver. Please confirm the installation. screenshot

      3. You will see the Update Driver Software confirmation. Click Close. screenshot

    4. You should not need to reboot your system in order to run the Attenuator.

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