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!
Best Answer
If you want to completely remove QGIS:
Start -> Control Panel -> Programs and Functions
to uninstall the softwareDelete the remaining installed folder under
C:\Programs\
(for Standalone 64bit),C:\Programs (86)\
(for Standalone 32bit),C:\OSGe04W
orC:\OSGeo4W64
Remove the
.qgis2
path from yourC:\user\...
folderstart
regedit
, search and remove all entries containing QGIS... and try the 32bit version, it has fewer installation bugs.