Have you ever wondered what the Dot means that sits under the application icon in the Mac Dock? This means that the application is currently open and active in your Macs memory
If your Mac is running slow, it can mean that you have too many of these applications open and they are using up all of your system memory. To close any applications you are not using, right click on the application in the Dock and and click ‘Quit’
Some applications are stubborn and if they wont Quit using this method, then it is possible to Force Quit them. To Force Quit, click on the Apple Icon and then click ‘Force Quit’. Find the application in the list and then press the ‘Force Quit’ button.
A great way to quit all of your applications at once and also restart your laptop is to click on the Apple Icon, click on ‘Restart…’ and uncheck ‘Reopen windows when logging back in’. This will close down all open windows and boot your laptop freshly with no open windows and clutter.
This is one of the first options that I uncheck when using my Mac as I like to start with a clean slate each time I restart my Mac. Once you toggle this option on or off, it will remember the setting for next time as well.