To remove your Password Manager site(s) from Google search results
Open IIS and navigate to the PMUser site (or PMAdmin / PMHelpdesk sites).
This update should be made on each of your Password Manager web servers.
If Password Manager is reinstalled or updated then please ensure that the 'X-Robots-Tag' is still configured in the response headers.
For more information on HTTP Response Headers please see the following Microsoft KB article.
For more information on the Robots meta tag please see the following Google document.