If your HP wireless printer is not working on Windows 7, ensure both the printer and computer are connected to the same Wi-Fi network. Check for network stability and restart both devices. Update printer drivers by downloading the latest version from the official HP website, ensuring compatibility with Windows 7. Verify that the printer is set as the default device in the computer’s settings. If issues persist, use the Windows troubleshooter to diagnose connectivity problems or consult HP’s support resources for specific troubleshooting steps. Addressing these aspects should help resolve common wireless printing issues on the Windows 7 platform.