Generate a list

[snippsat]

You should try yourself as this is a relative easy task,we do not like a task posted without any effort,then is more job description.
That's said here a start(saving to log file you should try yourself), these days pathlib is a more modern way to do it.

import pathlib

win_dir = r'C:\Windows\System32'
for file in pathlib.Path(win_dir).glob('*.exe'):
    if file.is_file():
        print(file)