Like BryanC, I still have this happen all of the time, but I think I've narrowed it down some, as I know can provoke the explorer hang on demand.
On my installs, I need to use Chrome, but also have to use Firefox, Safari, IE, to check on websites I work on. I have tons (way too many) pluggins in Chrome that I think are incompatible (ones that find fonts on a page, webdev stuff using flash, pop-up blockers that you can script, java stuff, etc;). I found that removing all Windows store apps helped -- I have no desire to go Windows Store and don't need weather and their news services. I though still that it had some compatibility issues with the programs themselves as I was often having problems with the large creative suite programs from Adobe for PC.
I think now though it is more of a combo of incompatible browser extensions and calling Chrome from within those programs that I though t were causing the hang. If I set firefox to default and don't load any extensions/addons. my CS programs don't lock up explorer when i use "publish to web functions" for example.
Another example, I am constantly looking up stuff via links in JRiver, one site for lyrics has a pop-up that is stopped by an adblocker called uBlock Origin. The PC will still work but, bingo no "start menu". Same with a link to a short film that my nephew worked on that's on a site that if you click on the window without a good blocker, you get all sort of new windows opening up or audio pages telling you how to win at Roulette or get a green card by lottery! So install the blocker and again, Bingo, time to restart explorer. I use Dashlane for password management and paying on some sites using it to fill in my details, can cause this too.
For my HTPC I don't care too much, as I only use 3 or 4 programs on it anyways, and these I have links for in my taskBar. I still can use Explorer, so I just don't use the Start menu much .. right click and I shut it down. On my work station though, until I have to live with it and just keep a lot of programs open so as not to need the "Start Menu"
I should nuke this and do a clean install, but I need these extensions (or the time to figure out the ones to replace, and trying to figure out what not to reinstall just seems like a real lot of work right now for me.)
Not sure if this will help other people, but if using chrome, play with disabling extensions. See if going to certain website that cause pop-ups causes explorer to hang. If so avoid them. When not using edge or IE, disable Microsoft store and their apps. See if that helps some.
Oh by the way there is a distinct possibility I don't know what the hell I'm talking about too
BTW --- what is the easiest way to get a legit copy of Win10. I just went through the free "migration" process, and I heard you have to call Microsoft ... I do not want to do that and wait for 50 minutes while they figure out if I am a "legitimate" user or not. I certainly do not want to use Win8 and reinstalling Win7 and waiting a couple of years like I did between XP and 7 doesn't seem to be an option anymore. Certainly not going to pay for CD version of Win10 now.