I open Terminal, type killall Finder, press enter to execute, then Finder icon bounces and the well known error popup appears:
The last time you opened Finder, it unexpectedly quit while reopening windows. Do you want to try to reopen its windows again? If you choose not to reopen windows, you may have to open and position the windows yourself. Don't Reopen | Reopen
I have absolutely no idea why!
How can I find out what process is causing this? The only thing that had changed on my system before this started happening was that I had booted into safe mode. This makes me think its a third party app thats the root cause. As I remember a similar issue happening with Google Chrome last year, I uninstalled that. No difference. The popup still happens any time I execute killall on Finder. What window/s is it talking about? Where can I find that information? Thanks!