As part of a common workflow, I might write a sentence like "group makes announcement."
I then double-click on the word "announcement" to select that word, CTRL+K to bring up Insert Hyperlink, CTRL+V to paste a URL I've previously copied from a browser while open to the announcement page, and Enter to close the Insert Hyperlink box.
In quick succession I might switch back to the browser, copy the URL of the group's homepage (or any other URL that's a subset of the start of the previous URL). I return to the document, double-click on "group," CTRL+V and Enter.
However, after CTRL+V, Word autocompletes the longer previous URL, so when I quickly press Enter, it incorrectly saves the longer URL as the destination of the link. Because I do paste and enter so quickly, and because there may be a slight delay in the autocomplete so it might not appear until a tiny fraction of a second before the dialog closes, I often don't notice this until much much later.
Also, it happens even when the longer link was not recently pasted, and I might have forgotten that at some time in the past I pasted a link to some URL further down a site's hierarchy than the link I'm pasting now.
On Microsoft Answers, you can find the example that
would actually get autocompleted to a previously linked to page,
This is very undesirable behavior and I'd like to disable it.
Microsoft's answer was to provide steps on how to delete the autocomplete history through Internet Properties (which seems to assume Internet Explorer as a user's primary and sole browser), but a solution requiring that procedure after every link being pasted is not acceptably usable in addressing the problem, and doesn't even solve it.
Answers for any version of Word can be helpful, with a bias toward newer ones.