While MediaTek (which acquired Ralink) has moved most legacy drivers to "end of life," searching their site for "RT3070" can sometimes yield the original utility software. 3. How to Install the TS9900 Driver on Windows 10/11

Double-click Setup.exe and follow the prompts. Manual Update (If Setup Fails): Right-click the Start button and select Device Manager .

Find the "Unknown Device" or "802.11n WLAN" under Network Adapters . Right-click it and choose .