Laptops For Dummies
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If your laptop has built-in WiFi but you add a new adapter that connects through the PC Card adapter or a USB port, you will need to remove or disable Windows drivers for the original unit. You should also make sure that you turn off the switch for the built-in unit to save battery power and to avoid the possibility of interference.

To disable the drivers, do this:

  1. Go to the Windows Control Panel.

  2. Double-click System.

    The System Properties panel appears.

  3. Choose the Hardware tab.

    The Hardware options appear.
    The Hardware options appear.
  4. Choose Device Manager.

  5. Click the + next to Network Adapters.

    The hardware managed there appears in a list.
    The hardware managed there appears in a list.
  6. Double-click the wireless component.

    Its properties are displayed.

  7. Click the Device Usage drop-down arrow.

  8. Select Do Not Use This Device (Disable).

    This instructs Windows not to use the drivers associated with it.

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