How do I permanently remove Cortana from Windows 10?

To remove Cortana from Windows 10, use these steps:
  1. Open Start.
  2. Search for PowerShell, right-click the top result, and select the Run as administrator option.
  3. Type the following command to uninstall Cortana from Windows 10 and press Enter: Get-AppxPackage -allusers Microsoft.549981C3F5F10 | Remove-AppxPackage.

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Why can’t I get rid of Cortana?

Press Windows Key + R and enter gpedit.

Now press Enter or click OK. In the left pane, navigate to the Computer Configuration/Administrative Templates/Windows Components/Search. In the right pane, locate and double-click Allow Cortana. Select Disabled from the menu and click Apply and OK to save changes.