Go to https://go.skype.com/classic.skype and the downloading of the classic Skype will start.
You will be redirected to another page where you can select the desired Skype version. As a Member, you can choose what Skype version you want that suits your preferences.
Once the program is downloaded, please click on it in order to open it.
You will be asked if you allow Skype to make changes to the Device and you will need to click "Yes" .
Enter your credentials and you are good to go!