After the latest update to Windows 10, my Windows temporary directory was updated such that I re-encountered some of the problems I’d experienced earlier in the year. When I fixed the problem I didn’t write down the actions that I’d taken to restore access to my own files. This time I did.
If you’re running PHP 7 on Windows and you want to use the Imagick PHP extension then you may want to refer to this post for some download and installation instructions.
Here’s a sequence of events I wouldn’t wish on anyone. What started out as one website running low on disk space ended up with me having to reload some of my local databases from backups.