Warning: Zadig replaces drivers. Use only for STM32 native USB CDC (not ST-Link bridge).
If your STM32 is still not showing up as a COM port, consider these common pitfalls: STSW-STM32102 | Software - STMicroelectronics
You may still need to install drivers if you are using an debugger integrated into a development board (like a Nucleo or Discovery board) to access its specific "ST-Link Virtual COM Port." Stm32 Virtual Com Port Driver Windows 11
For Windows 11, the experience has evolved significantly. While older versions of Windows required dedicated, manually installed drivers from STMicroelectronics, Windows 11 features a native "inbox" driver that recognizes most STM32 USB Communication Device Class (CDC) devices automatically.
The experience on Windows 11 is a classic "love-hate" relationship for developers. While technically streamlined, it often requires manual intervention to work correctly. The "It Just Works" Reality Warning: Zadig replaces drivers
Key factors affecting the include:
The STM32 Virtual COM Port driver on Windows 11 is no longer the nightmare it was in 2021. With the release of properly signed, Memory Integrity-compatible drivers from STMicroelectronics (version 2.1+), the installation process is largely seamless. While older versions of Windows required dedicated, manually
Elena extracted the zip file and ran VCP_V1.5.0_Setup.exe as Administrator (right-click → Run as administrator).