Got this error trying to update a WordPress site, and I didn’t want to lose all the content.  What error?

Unable to locate WordPress root directory

Given that I use a Windows host (don’t start on me, I’ve used them since, like, 2001), it’s obviously permissions.  The site in question (not this one, so don’t go playin’) had WP installed in a sub-folder, so I brute forced the permissions there and the upgrade worked.  Now I just need to tighten up security back to what it SHOULD be 😦