How to rebuild the index in Outlook

Step 1: Click on File, then Options. Click Search on the left hand side
Step 2: Now click on the button that says Indexing Options
Step 3: Click the button that says Advanced
Step 4: Within the tab that says “Index Settings” click on the button that says “Rebuild”
Step 5: When the index is being rebuilt, your search will not work. You should wait until the index is done rebuilding. The time it will take for the index to be rebuilt depends on the system you are using, the amount of files that need to be indexed, and file size.
Step 6: If the search option is still not working after the rebuild index, restart the Outlook and open in safe mode and it will work without any issue.

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