Skype has long been an app that has made itself special by ignoring the common understanding that the X icon in the top-right of a window closes the app. Historically, Skype has instead minimised itself to the System Tray in the bottom-right corner of your monitor. This can be somewhat frustrating for people that think they’ve closed Skype and are therefore offline but get a call or message from someone who has seen them online.
For years, Skype has kept this functionality, forcing users to right-click on the entry in the System Tray or go through an in-app menu to actually quit the app. Thankfully for users that find this behaviour particularly annoying and presumptuous; Microsoft has now at least added the ability to disable this behaviour if you don’t like it, although it is still enabled by default.
How to set Skype to close when you click the X icon
To configure Skype’s settings, you need to first need to open the app. Once you’re on the main screen, click on the triple-dot icon in the top-left corner, just to the right of your name and icon, then click “Settings”.
Switch to the “General” tab on the left of the Settings window, then click the “Upon closing, keep Skype running” slider, so it is set to the “Off” position. Turning this setting “Off” will properly close Skype when you click the X button as you would expect from any other app.
You don’t need to save any changes as all Skype setting changes are applied instantly. You can check that Skype now closes properly, by clicking the X icon. If the Skype icon does not show up in the system tray, then you can be confident that you’ve completely closed it.
Tip: If the icon does still show up, try moving your mouse over it and see if it disappears. Sometimes, the icons fail to disappear until the mouse moves over them, even if the relevant application is closed.