Follow my guide Here to remove ads from Skype.
How to open more than one skype (windows)
To use more than one Skype account on the same computer at the same time, you need to start a new instance of Skype.
From the Windows taskbar, click Start > Run (or press the Windows The Windows key. and R keys on your keyboard at the same time).
In the Run window, type the following command (including the quotes) and press OK:
For 32-bit operating systems:
“C:\Program Files\Skype\Phone\Skype.exe” /secondary
For 64-bit operating systems:
“C:\Program Files (x86)\Skype\Phone\Skype.exe” /secondary
Run these commands by typing them into any skype chat conversation.
The below commands fixed my issue where Skype always shows me online.
First run this command to see all open sessions: /showplaces
Then run this command to log out all remote sessions: /remotelogout