Hi ,
You might try to reate an outbound rule blocking internet access to SearchApp.exe.
You can use this program path for example:
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
For your reference:
Cortana: Block outbound network connections completely
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Best Regards,
Candy
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