I installed the driver and
Due to the fact that you have attempted to install the drivers for the
wireless adapter, the device manager might be holding multiple copies of
the drivers which might be preventing the drivers from being loaded
properly. In order to address the problem, please do the following:
Step 1 If the computer has a built-in ethernet adapter, please make sure that you disable it.
Step 2
Boot into safe mode (press F8 during bootup). Once in safe mode,
access the device manager (right-click my computer, left-click
properties, left-click on the hardware tab, left-click on device
manager). Expand the network adapters category and determine if there
are multiple copies of the driver. If so, please uninstall them one by
one until they are removed completely.
Step 3 Go to Control Panel, Add/Remove programs, and uninstall the D_Link configuration utility.
Step 4
At this point, restart the laptop and eject the wireless card. If you
have a PCI adapter, do not reboot or remove the adapter.
Step 5
Make sure that there are no background utilities running such as
antivirus, crash guard, or firewall. If so, please disable them.
Step 6 Run the installation CD in order to install the drivers for the wireless adapter.
Step 7 If you have a laptop, shutdown the computer and install the adapter. Turn on computer and Windows should install the drivers.
If you have a PCI adapter, reboot the computer and Windows should install the drivers.