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I upgraded 2 computers to the Office 365 February update: https://support.office.com/en-us/article/What-s-new-and-improved-in-Office-2016-for-Office-365-95c8d81d-08ba-42c1-914f-bca4603e1426?ui=en-US&rs=en-US&ad=US
Ever since then search is broken in Outlook on both computers - any search returns no results. Windows 10 search outside Outlook works fine. I've rebuilt the index, used ScanPST.exe and tried other things at https://lookeen.com/blog/how-to-fix-outlook-2016-search-problems and https://support.office.com/en-us/article/Reset-indexing-by-rebuilding-your-Instant-Search-catalog-213a2728-0ef4-427a-9bb2-aed329a59b17 but the problem remains on both computers.
Did February 2017 Office 365 update break Outlook Search?
Using Classic Outlook on Windows for personal email, calendar, and contact management
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Hello everyone,
There is an updated build that was just released. Please turn auto updates back on, install the latest build & confirm that it fixed the issue.
Gen
I went to the Office365 Updates section of Outlook today and ask for new updates. After they were installed and I restarted Outlook, the search function was working again.
I also did the update (1702; build 7870.2031). Search window on Outlook in current folders now will pull up emails by key word, the search result displays only emails older than one year and, until I click each email to open the body, all I able to see listed on the header is sender name (me) and the Subject line.
so, important functions needed for efficient searching have still not been corrected.
Bill
This seems to have worked for me - so far.
I turned on updates and went from Version 1702 build 7766.2060 to build 7870.2031, and search seems to be working fine, both in the current folders and sub-folders.
So this seems fixed. Thanks.