Outlook 2016 search issue

ojoong kwon 20 Reputation points

Hello, There.

From 2 days ago, thhe problem below started appearing for all users. Please help...

'Office 2016 (16.0.4266.1001) 64bit, Windows 10 20H2 or 21H2'

Problem: Search not working normally in Outlook 2016

  • Current Mailbox: Not working
  • All Mailbox or all outlook items: No problem.
  • If uncheck the exchange cached mode option, no problem.

Tried these but didn't solve it.

  • index rebuild
  • location check in indexing options
  • indexing status check
  • Outlook Indexing Group Policy Setting: Not configured
  • Recreate the profile(ost)
  • Repair office
  • Windows Search restart and run the troubleshooter

What Windows update patches are likely conflicting? or Are there other possible reasons for this problem?

Most users have been experiencing this problem at the same time.

A family of Microsoft email and calendar products.
572 questions
Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
3,758 questions
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Accepted answer
  1. ChristyZhang-MSFT 10,371 Reputation points Microsoft Vendor

    Hi @ojoong kwon ,

    Glad to hear this issue has been resolved!

    Thanks for the sharing.

    However, due to a recent update in forum policy, the question author now is not able to accept their own answers.

    So I have written a brief summary of the solution this issue. Please feel free to accept it as the answer, which would benefit others who also has similar issues in forum.


    Search not working normally in Outlook 2016


    After adding the below registry key, the problem was solved.

    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Search << DisableServerAssistedSearch(DWORD32, value 1)

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