pro micro is not recognized

Hi, my problem: I have got an Arduino Pro Micro with 5V, 16MHz processor. The same board is also available with a 3V, 8 MHz processor. I had no problems until now, but today I have by mistake uploaded code, which has been compiled for the 3V, 8MHz processor. And since then, windows tells me it does not work properly and thus cannot be recognized. What can I do? Have I already bricked my Arduino? Can I make a hard reset?
thanks in advance!

Ok, I have found an instruction how to reset the pro micros bootloader. For anyone who faces a similar problem:
https://learn.sparkfun.com/tutorials/pro-micro--fio-v3-hookup-guide/troubleshooting-and-faq

I know it’s been over two years since you posted this. I want to say thank you. This identified and fixed my problem.