Look for a blue icon with a white “S.” If you’re using Windows, you’ll find it in the Start menu. On a Mac, you may find it on the Dock or in the Launchpad.

It’s not possible to delete chat histories with “Skype for Windows 10” or Skype for Web. If you’re using Windows 10, download Skype Classic to use this method.
 If you haven’t already, type your Skype name or email address and click Sign In. Then, enter your password and click Sign In again., It’s in the menu bar at the top of the screen.,, It’s in the left panel of the Options window, toward the bottom of the list., It’s a gray button on the right side of the window., A pop-up window will appear.,, Your Skype conversation history is now deleted.
Open Skype.
Sign in to Skype.
Click Tools.Click Options.
Click IM & SMS.
Click Show advanced options.
Click Clear history.Click Delete to confirm.
Click Save.
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