Skype hanging - can't uninstall

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Regular Contributor

When my users login to the server, the Skype for Business splash screen shows up and continues to hang. I want to uninstall Skype, as we do not use it, but it is not in the Control Panel or naywhere to be found. How do I get rid of Skype for Business? Thank you. Here is the splash screen that pops up.

skype1.png