haven't tried the stackexchange page before, but since I can't find information on this problem: I can't completely uninstall QGIS, I want to do a complete, clean reinstall, but whenever I start the installer after having uninstalled QGIS it shows:
QGIS Dufour or QGIS Valmiera already installed
So it seems the uninstall doesn't work properly.
I'm working on a Fujitsu Esprimo with an Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (8 CPUs), ~3.4GHz, 32768MB RAM, Windows 7 Enterprise 64-bit (6.1, Build 7601) Service Pack 1.
I've recently tried installing OSGEO4W in addition to QGIS. Can this be the problem? Another thing that kept happening with all my QGIS installation from 2.0 upwards (I have only the newest one installed currently, 2.2 Valmiera) is crashes at exit ("QGIS.bin has stopped working). I'm having no other problems with it though.
Could you give me instructions on how to completely remove the program and do a clean reinstall? Thanks in advance!