Hi,
Could not create directory. C:/inetpub/wwwroot/dt2/wp-content/plugins/updraftplus/
This means that WordPress tried to create that directory, by calling the “mkdir()” command, and that the operating system said “no, operation failed.” Possible causes of this are 1) permission denied 2) disk full or 3) faulty disk. There’s nothing special I can say about it from an UpdraftPlus angle, as at that point, all WP is doing is saying “Hey, computer, create a directory!” whilst its copying over the plugin files.
As an alternative, if it happens again, you can copy/paste the URL after “Downloading update…” directly into a web browser, download the zip, and unzip it by hand into wp-content/plugins – that’ll do the same thing as WP is trying.
David