SharePoint 2013 search webpart - query suggestions

Hi there,

on my Portal Website I have a search webpart which has query suggestions (incl. people search) activated. But unfortunately, while typing it shows not only the proper users, it also shows usernames that are no longer present in Active Directory. The specific users are not found in AD, nor can they be used to set permissions in SharePoint. Where the hell is SharePoint finding those entries? I tried to reset the query suggestions, but the how-to's found don't get me any solution. Because there were no entries found.

The database table MSSQLogSearchCounts is there and there are entries which match my problem names.

Any hint?
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Jamie McAllister MVPSharePoint ConsultantCommented:
I imagine they're coming from your User Information List.

Append _catalogs/users/simple.aspx to the end of your Site Collection url to see that list.
Marcel_DAuthor Commented:
I will check that. Thanks for the fast reply.
Marcel_DAuthor Commented:
Okay, after checking the UIL this isn't the problem :( The specific user's are not present in that list.
Jamie McAllister MVPSharePoint ConsultantCommented:
I've seen some guidance about a number of full crawls being needed to clear old people results.

When were the users removed, and how regularly do full crawls occur?

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Marcel_DAuthor Commented:
That's what I thought, so I tried to reset the Index, made a full crawl (Continous Crawl is active as well)... but nope, the entries won't disappear...
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