I installed Windows 10 on Mac without using Boot Camp -
Actually all I need is Bootcamp menu, because you can activate right click and function keys with it. But I tried a lot of things from this forum and youtube videos but couldn't manage to use it. I installed Trackpad ++ but it's not functioning well, it randomly presses keys and stuff.
You can download the Boot Camp Windows support software separately.
You need a USB stick 16GB or larger, formatted to MS-DOS(FAT)
Run The Boot Camp Assistant from macOS
From the menu > Action > Download Windows Support Software
Choose your USB as the target.
Run the setup.exe from the USB when you're back in Windows.
More detail: Apple KB - Download and install Windows support software on your Mac
