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Stm32 Virtual Com Port Driver Windows 11 Portable (2027)

Sometimes, the issue isn't Windows 11 at all—it's the code running on the STM32.

Some terminal software struggles with high COM numbers. stm32 virtual com port driver windows 11

If you are still staring at a yellow exclamation mark, run through this checklist: Sometimes, the issue isn't Windows 11 at all—it's

Your firmware might be using USB CDC (not ST-Link). stm32 virtual com port driver windows 11

This modifies the USB driver stack. If you rely on the ST-LINK for debugging (SWD), be careful not to replace the driver for the debugging interface itself, or your IDE (Keil/IAR/STM32CubeIDE) won't be able to flash the board.