The most recent compatible driver was released for Windows 8.1/10 around 2015. The "Yellow Triangle" Issue:
Since the RT3290 is outdated (supporting only 2.4GHz Wi-Fi and Bluetooth 3.0/4.0), persistent issues are common. Solved: Ralink RT-3290 Bluetooth not working - 9195330 Ralink Rt3290 Bluetooth Driver Windows 11
: Since Windows 11 shares a core architecture with Windows 10, installing the last known official driver (often version 11.0.761.0 or similar) using "Compatibility Mode" for Windows 8 can bypass installation blocks. Manual Registry Tweaks The most recent compatible driver was released for Windows 8
Run the .exe file. It will extract to a folder like C:\SWSetup\SP61340 . Do not run the installer automatically if it fails. Instead, cancel the auto-installer and note the extraction path. Manual Registry Tweaks Run the
Uncheck "Show compatible hardware" to see a full list of Ralink/Mediatek drivers if the standard ones fail. Run the Compatibility Troubleshooter If you have a downloaded Windows 10 driver (.exe file): Right-click the installer and select Properties Compatibility Run this program in compatibility mode for: and select Windows 10 and run the installer as an administrator. Microsoft Support Troubleshooting Common Issues Bluetooth Disappeared:
After install: