IMPORTANT: If you are using Microsoft 365Skype for Business, you can't delete it from your computer without also uninstalling the rest of the Office suite. This is because it's integrated with the other Office apps. The following instructions are for customers who he standalone versions of Skype for Business.
Go to Control Panel > Programs > Programs and Features > Uninstall or change a program.
Choose Skype for Business > Uninstall. If you don't see Skype for Business listed, then you're using a version that's integrated with other Microsoft 365 apps. The only way to uninstall it is to remove all of Office from your computer.
At the Ready to uninstall? box, choose Uninstall.
When it's done uninstalling, choose Close.