Open Registry Editor, go to the following location: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsĬreate a new Key under Windows on the left and name it “ Windows Search“, and create a new DWORD32 Value called PreventIndexingOutlook and set it as 1. You can also use this registry tweak to disable Windows Search and only use Outlook built-in search to perform the search. Then click Modify button and uncheck Microsoft Outlook from the list and click OK. While Outlook is still running, open Control Panel, find Index Options and open it. Note that it will be a long process that will take a long time to finish, especially you have a large mailbox. Then click the Advanced button and Rebuild button to start the process. Open Control Panel, search for “ Indexing Options” and open it.
If you are suffering this, here are a few workarounds for you to try out. This is a known issue now that’s causing a lot of issues for Outlook users. Search results may be incomplete because items are still being indexedĬlicking on the yellow message box pops up an Indexing Status dialog box stating you still have a large number of items remaining to be indexed. Something went wrong and your search couldn’t be completed When you do a search in Outlook, instead of instantly popping up the results, it displays: Well, there is something else broken by this June 2017 Update in Outlook.