If the card isn't detected at all, try moving it to a different PCI slot to trigger a fresh hardware scan.
Windows should identify it as the "Netgear WG311v3" and complete the installation. Step 3: Troubleshooting Connection Issues Netgear Wireless Card Wg311V3 Driver Windows 7
Ensure you are using Windows Wireless Zero Configuration to manage your networks rather than the old Netgear Smart Wizard utility, which is prone to crashing on newer OS versions. If the card isn't detected at all, try
The WG311v3 is notoriously difficult on Windows 7 64-bit. If the Vista driver fails, you may need to look for the generic Marvell 88w8335 driver. Netgear Wireless Card Wg311V3 Driver Windows 7