I've been having some issues removing some content from Google's search results. I have some word documents and pdf files in public directories that I have since password protected. When you try to access any of the documents you are prompted for a user name and password. The documents have also been completely removed from the server.
I did have a disallow on the directories in my robots.txt but this didn't seem to do the trick either.
I've also been adding the urls to the temporary removal tool but they just expire and appear back in the results.
Any suggestions on how to completely remove the content that used to be in these directories from Googles search results? The urls currently return a 401. Would a 410 be more effective?