Synopsis

When running an installation on your computer, it is important to close all applications to make sure there is no interference. Applications running in the background can often interfere with an installation and cause it to error out. Some of the most common applications running in the background that are known to interfere with installations are antivirus software, the IntelliMouse application, and audio players. Most of these applications appear in the System Tray on the Desktop.
Discussion


Start by closing all applications in the System Tray, e.g., your antivirus application and follow up by closing applications that appear in the Task Manager.

To close an application that appears in the System Tray, right click on the application icon and look for options to close or disable the application. The following figure shows a demonstration.
Some applications give you the option to exit as show in the figure below.
Some applications, such as antivirus software, allow you to disable the application temporarily.

User-added image

2. Not all applications appear in the system tray, so you can launch the Task Manager to make sure all applications are closed. To launch the Task Manager, press Ctrl + Alt + Delete and click on Task Manager.

Select the Applications tab and look for applications that appear under the Task column.
Right-click on the application you want to close and select End Task.

User-added image