"wannacry" virus

Hello, Barrie.
I do understand the inconvenience this may have caused to you. I would request you to follow the troubleshooting steps provided in this article http://support.avg.com/SupportArticleView?urlname=How-to-update-Windows-to-fix-the-EternalBlue-vulnerability-and-prevent-the-DoublePulsar-attack on how to resolve your issue.

Loud & Flashing warnings, blocking all activity upon booting computer today.  HELP needed ASAP.

Hello, Barrie.
I do understand the inconvenience this may have caused to you. I would request you to follow the troubleshooting steps provided in this article http://support.avg.com/SupportArticleView?urlname=How-to-update-Windows-to-fix-the-EternalBlue-vulnerability-and-prevent-the-DoublePulsar-attack on how to resolve your issue.