Hello Valen,
Just to double check what you are doing, are you getting to the same window I'm attaching below and clicking on Remove? And after doing so, MAX doesn't get removed (or it gets removed but the Icon still appears on Desktop)?
Usually when removing MAX and installing a new driver (i.e. NI-DAQ 7.3) which installs MAX, it fixes any corrupt files that the old MAX may have had.
Be careful that when removing MAX, other dependencies (programs) may get uninstalled as well.
Please let me know about this.
thanks,
LA