What is the difference between qemu-system-armw.exe and qemu-system-arm.exe? I couldn't find anything.
The difference is one "w". Seriously, through trial and error, I've found that the file with "w" is for Windows. The other is for Linux.
An executable with w does not open a console window, and an executable without w does. Similar to javaw and java, pythonw and python, ...