When I use the command:

pyinstaller.exe --icon=test.ico -F --noconsole test.py

All icons do not change to test.ico. Some icons remain as the pyinstaller's default icon.

Why?

All icon change in

• windows 7 32bit
• windows 7 64bit (make an exe file OS)

Some remain default

• windows 7 64bit (other PC)

I know this is old and whatnot (and not exactly sure if it's a question), but after searching, I had success with this command for --onefile:

pyinstaller.exe --onefile --windowed --icon=app.ico app.py

Google led me to this page while I was searching for an answer on how to set an icon for my .exe, so maybe it will help someone else.

The information here was found at this site: https://mborgerson.com/creating-an-executable-from-a-python-script