I am current running a Windows 10 Dell Precision laptop with 16 GB ram.
I had original installed pgAdmin 4 1.1, the upgraded it to 1.3.
pgAdmin 4 1.3 was stable and ran fine, then I upgraded to 1.6.
pgAdmin 4 1.6 had issues reconnecting to postgres (PostgreSQL 9.5.6 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11), 64-bit) requiring query windows to be closed and restarted and in some cases pgAdmin had to be closed and restarted.
Since 1.3 did not have this problem, I uninstalled pgAdmin 4 1.6, which appears not to have cleanly uninstalled, because after installing pgAdmin 4 1.4 the application would display the splash screen and hang. I tried uninstalling 1.4 and hand cleaning the registry, then installing 1.5 getting the same resulting behavior. I then uninstalled 1.5 and reinstalled 1.6, same splash screen and hang.
I quit trying pgAdmin 4 and went to pgAdmin 3. I like the speed and handling of pgAdmin 3 over 4, and would rather use it, if had a tab window interface instead of multiple windows.
Thanks,
David Hickerson