: Look for netr28x.inf during the installation process, as this is the primary configuration file for this chipset . 3. Linux Installation Updating the WLAN Ralink RT3090 - Microsoft Q&A
If you absolutely must keep this card running on Windows, use the "Add legacy hardware" method with driver version 5.1.24.0 and disable power management. Expect occasional glitches. However, for a truly frustration-free experience, consider either switching the host OS to a lightweight Linux distribution (like Xubuntu or Linux Mint) or spending a few dollars to replace the card with a modern equivalent. ralink rt3090bc4 v20a driver
For 99% of driver purposes, you should search for the driver, not the full “BC4 V20A” string. The latter is only useful when identifying the card for hardware replacement or verifying antenna connectors (usually 1 or 2 IPEX/U.FL connectors). : Look for netr28x
Version 5.00.52.0000 or 5.00.57.0000 (Released 2014-2016) Expect occasional glitches
(Ralink was acquired by MediaTek in 2011)