Windows 11 handles USB-to-TTL adapters reasonably well, but the era of "just plug and play" is over due to enhanced security. FTDI and genuine Silicon Labs chips provide the smoothest experience. If you frequently encounter driver failures, especially with Prolific or CH340 adapters, investing in a quality FTDI-based adapter (e.g., FT232RL) is highly recommended.
However, Windows 11’s stringent driver signature enforcement and automatic update policies have made driver management more complex. A failed or incorrect driver update can lead to , Code 43 , or the infamous "Device Descriptor Request Failed" errors.