My initial install was Dufour 2.0 and have update to 2.18 and then recently to 3.4. 20 worked fine, but then 2.18 had some periodic crashes that were intermittent. Now at 3.4 QGIS "hangs p" and I have to kill in the task manager. I tried to uninstall everything for a clean start but somehow there are tidbits that remain and I now can't get any to work properly. I've a 64 bit machine and have tried both 32 and 64 reinstall to no avail.
I purchased Ashampo uninstaller and tried that but still no complete uninstall.
Any idea? I'm considering a complete wipe and reset but that is a huge headache and if there is an alternative I'll try it.