Manually update Windows Defender to fix update failures KB2267602 (Definition 1.213.6196.0) – Error 0x80070643

On a few of my Windows 10 computers, Windows Defender was failing to update properly through Windows Update.  I found that you can manually update Windows Defender using this command from a terminal window:

I found this instruction in the comments of this post: https://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_updating/definition-update-for-windows-defender-kb2267602/d0d06c7a-fd70-4f27-94a6-9320d8114768

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