Close Outlook and wait for about 5 minutes and also verify in Task Manager (CTRL SHIFT ESC) that on the Processes tab the process actually quits.You might get a lot of disk activity; this is the Search Indexer removing the indexed items from the Index.You can find this file in the same folder as When you have a big pst-file or mailbox, this indexing could take some time but if the number of items left to index doesn’t change after leaving your computer idle for over 30 minutes, something is wrong still.Go back to the Search Options and, depending on the version of Outlook that you are using, deselect Outlook or the data file that is giving you issues.
Does another Outlook mean new or different Outlook search problems?At present this is happening on approx 50% of the workstations we upgrade to Office 2016 (Click-to-Run) and they're all running Win10 with all patches. right click windows icon on the lower left 2.click "command prompt administrator" 3sfc /scannow then press enter 4.after the sfc type /online /cleanup-image /restorehealth 5. Using the radio buttons change "how should this file be indexed" to "Index Properties and File Contents". Filter descriptions should now read "Plain Text Filter".Possible answer here answers.microsoft.com/en-us/office/forum/office_2016-outlook/… Restart computer and test."From the same link another possible answer" In Outlook 2016 Open File - Open Options - Open Search. OK and Close out back to Outlook and after a while search should start to return proper results."@David Postill There's nothing wrong with Windows, these computers have just been reimaged from scratch and search works on identical computers.A Senior Writer for groovy Post, Andre previously was lead review editor at Active and a contributor at Sometimes, users find it difficult to understand and execute Outlook Search with each updated version of the application.The search algorithm might incorporate different kinds of malfunctions such as entirely improper outputs or no/ blank results.