If you are working with Arduino, ESP8266, ESP32, or Raspberry Pi Pico, you have likely encountered the "USB to TTL" serial adapter. However, plugging it into a Windows 11 machine can sometimes result in the dreaded "Device not recognized" error or a missing driver issue.
If you’ve recently plugged your USB-to-UART adapter (CH340, CP2102, PL2303, or FTDI) into a Windows 11 machine—especially after the 2024 Update (24H2) or the 2025 cumulative updates—you’ve likely encountered the dreaded yellow exclamation mark in Device Manager, error code 52 (driver not digitally signed), or code 10 (device cannot start). usb to ttl driver windows 11 upd
Download from official WCH or a trusted repository: USB to TTL Drivers for Windows 11: The