a few days ago I decided to update my QGIS 2.14 into a QGIS 2.18.

I uninstalled the old version and installed the new one, normally. Then nothing at all happened when I pressed the icon.

I uninstalled, deleted all registry mentioning old installations of QGIS, reinstalled 2.18, and still nothing.

I tried installing QGIS OSGEO4w, but again, nothing.

I changed the Qgis.bat to add the system folder

PATH %systemroot%\system32; %systemroot%; %systemroot%\system32\wbem

, and nothing..

I really don't know!

Clearly I also tried to install back the 2.14, but it does not launch either.

Any suggestion?

  • Have you tried running the qgis.bat file or loading the OSGeo4W Shell and typing in qgis?
    – Joseph
    Jan 16 '18 at 11:21
  • yes.. not even the OSgeo shell is launching, actually..
    – user34423
    Jan 16 '18 at 11:28
  • Might I suggest starting again: uninstall QGIS, delete the .qgis2 folder (located in /Users/You/.qgis2, back up any scripts or models if you made any), if using Windows run the regedit program and delete everything related to QGIS. Restart your computer then do a clean install using the correct QGIS setup (32-bit or 64-bit). See if this helps. You shouldn't need to modify any paths, it's weird nothing seems to load.
    – Joseph
    Jan 16 '18 at 11:37
  • I tried this several times, actually, and it didn't work at all. I don't know why. Furthermore, now that I have installed everything through OSGeo4W I don't even have the uninstal option!
    – user34423
    Jan 16 '18 at 11:56
  • Please make sure you uninstall your osgeo4W install via the osgeo Setup : gis.stackexchange.com/a/256500/25139
    – gisnside
    Jan 16 '18 at 20:41

You can delete the OSGEO folder, including all the installed applications. (This is usually installed at C:/).

If you do this, and then run the most recent OsGeo4W installer and install again, that should sort it.

  • Thanks. I installed already everything using the latest OsGeo4W installer, and yet nothing was starting..
    – user34423
    Jan 17 '18 at 13:10
  • Is your OS 32 or 64 bit? What version of the installer did you use?
    – Alex Leith
    Jan 17 '18 at 21:11
  • It's a 64bits. The installation through OsGeo gave some error at the end, but I don't know what exactly. I'm going to try again now. I downloaded the latest version a couple of days ago but I cannot read the version.
    – user34423
    Jan 18 '18 at 8:38
  • You'd better take note of the error, hey!
    – Alex Leith
    Jan 18 '18 at 11:26

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