These files are on your computer (for some time now, Skype stores part if this data on their servers as well – see comment #19).
If you want to delete your Skype chat history from your computer, follow the steps below. In a separate article I have described how to delete the history with only one contact.
Follow the steps
- It is recommended to first backup your contacts (sometimes they disappear). After that quit Skype.
- Open any folder or Windows Explorer.
- In the top part of the window in the address bar input %appdata%\skype and press Enter.
- This folder contains a folder with your Skype Name. Delete it. This will remove your history and settings.
Where else is this data stored?
For some time now, part of the history (the last 30 days) is stored on Skype servers as well. This is why after you delete it and then sign in, some of it might be instantly restored. See comment #19 for more information.
Deleting it from the program options
There is an option in the Skype client that allows us to delete the history. My experiments show however, that this is not a reliable method and the data is not removed correctly from all files, even though it stops showing in the chat window.
If this is fine with you, just go from the menu to: Tools – Options – Privacy, and under Keep History for choose the period and click Clear History.