Forum Discussion
Outlook Search not showing Recent Emails (December-2021)
The Windows Team is investigating the issue for a fix. I have seen some reports that this issue might affect Windows 11 too starting with Dec update KB5008215.
In the meantime a workaround is to set the registry key in this article, Outlook Search not showing recent emails after Windows update KB5008212 (microsoft.com). After you set this registry key, and restart Outlook, Outlook will use its built in legacy search. After the Windows fix is out you can delete that registry key to get back to Windows native WDS Search.
Another option. Put this text below in Notepad and save as preventindexingoutlook.reg. Then double click on it and install the regkey.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windows Search]
"PreventIndexingOutlook"=dword:00000001