Rebuilding will take some time, so make sure to leave your PC running for a while.Once the advanced box has opened you will see in the section named Troubleshooting section you have the option to rebuild, click this option.You should now see which locations are being indexed, click on the Advanced button.Rebuilding the index in Outlook 365 is necessary in when your search results come up empty.
If your results come up empty, you will need to rebuild the index. The issue may lie in the fact that when you installed Office 365, you could have lost your Outlook index. Well if your Outlook 365 search is not working it is likely to be an indexing issue, and you will have to correct it for the Outlook 365 search to work properly again. What do you do when Outlook 365 search isn’t working? You have been in this situation before-you’re searching for something in Outlook but nothing shows up. You can expand each and check the options.
Here’s how to use this Outlook 365 Search option: NOTE: once you enter the Search People option, the results will be from your contacts or the company’s directory. You can search for a person, a group, or a resource. When you go into Search People option, you’re given a whole new set of options to work with. You will notice from the steps above that when you start to type in a name in the Search Mail and People search box that the Search People option will automatically come up.
The ability to preview search results will tell you if a search isn’t working properly. The scale of your searches is limitless and it even allows you to run multiple searches simultaneously. These new features will help bring your Office 365 searches to a new level.