If Windows refuses to install the driver, you may need to disable Driver Signature Enforcement temporarily. Adapter Not Detected:
The most reliable source for Windows 10 and 11 drivers is the Microsoft Update Catalog , which lists verified Mediatek/Ralink drivers. Legacy drivers and firmware can also be found in the MediaTek/Ralink Archive on Internet Archive. Realtek 8187L (Legacy): kinamax ts9900 driver download free new