"full instructions on how to uninstall the culprit Windows 10 Security update" Go to start menu. Choose Settings. Choose Update and security. Choose Advanced Options. Choose View Update History. Choose uninstall updates. A list of updates will appear: Find KB3132372... easiest to find by date (Dec 29 to present, depending on whether your machine was on or not) Select the update and click uninstall. It will ask if you are sure, and you are.

Note: not a perfect fix. Windows 10 will try to reinstall it PDQ. See this thread :"Sticky: Latest WIN 10 update (KB3132372) prevents poser 10 from working, 2016 Jan 02 6:12 am" : See entry from EAQS on how to hide the update.

Be aware that this is still not a perfect solution: once the update is hidden, Windows 10 may continue to periodically reboot to attempt reinstall (if computer is left inactive for any length of time) . Never get up without saving your work. It's a pain. If anyone out there knows how to fix this second problem, Please let us know.

Wish I knew more...

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