I downloaded stm32 virtual com port driver from st web. And created a small VCP program by stm32cubemx and keil by using stm32f407zet development board. But when i connect my stm borad to pc, the driver not recognized. How to resolve it ?

[Senthil Karalasingam]

I'm using Windows 10 64bit

[Tesla DeLorean]

What STM32F407ZET board?

Check the pins and clocks, perhaps pull BOOT0 high and check if the board comes up in DFU mode

Check that you have an adequate stack allocation.

Break out the debugger and scope and do some analysis.