#1. Via Settings.
Open the Start menu.
Click Apps in Settings.
Find and select Skype for Business, click the Uninstall Skype for Business button. Click Uninstall again in a pop-up to confirm.
#2. Via Control Panel.
Enter Control Panel in the taskbar search and select this item. Select Programs – Programs and Features.remove Skype for Business on Windows
Select Skype for Business program from the list, and then click the Uninstall button. Follow on-screen instructions.
#3. Via registry.
Enter regedit (or Registry Editor) in the taskbar search box and find the registry editor. Right-click it and hit Run as Administrator option.reinstall skype business
Use the registry editor to view the following registry key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Uninstalluninstall skype with registry
Then choose the Skype folder, double-click the UninstallString registry setting, copy the value filed and close the registry editor.uninstall skype in registry editor
Right-click the Start menu and press Run.
Insert the copied value (CTRL+V) into the text field and click OK.delete skype