Alex downloads the real driver from a community forum (not the sketchy Maxicom site) — the official Realtek 8812BU driver from 2022, properly signed by Microsoft. He uninstalls the Maxicom driver, installs the Realtek one, and it works instantly — without disabling Secure Boot.
The “official” Maxicom driver is literally the same as the generic Realtek driver — just repackaged with a different logo. But Maxicom’s repackaging broke the digital signature, causing the error. maxicom wifi adapter driver
He reboots. Still no WiFi. Frustrated, Alex opens Device Manager again. The unknown device now shows as Realtek 8812BU Wireless LAN Card — but with a yellow triangle. Error code: 52 — “Windows cannot verify the digital signature for this driver.” Alex downloads the real driver from a community
Alex disables Secure Boot in BIOS and turns off driver signature enforcement via advanced startup. Then he reinstalls the driver. This time, it works. Frustrated, Alex opens Device Manager again