Is it possible to create a file in window OS pc, using stm32 controller bare metal coding

[waclawek.jan]

Try to explain your question in details.

JW

[Andrew Neil]

As @Community member​  suggests, your question doesn't make much sense -please explain what you are actually trying to achieve.

[Tesla DeLorean]

You could appear as a mass-storage controller with a file on it, that windows could see, but you're not going to be able to get windows to "create" anything, at least in the sense that the STM32 pulls some strings, and the PC performs some file creation.