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Click → and search for an application, or select a category and find an application from the list.
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Select the application that you are interested in and click .
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You will be asked to enter your password. Once you have done that the installation will begin, as long as you have a working Internet connection.
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The installation usually finishes quickly, but could take a while if you have a slow Internet connection. When it has finished, your new application will be ready to use; most applications can be accessed from the Applications menu.
For more information about using the Ubuntu Software Center, consult the Ubuntu Software Center Manual.
Synaptic can be used to manage advanced software packages (such as server applications) which Software Center does not manage.
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Click → → . Enter your password if prompted.
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Click to search for an application, or click and look through the categories to find one.
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Right-click the application that you want to install and select Mark for Installation.
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If you are asked if you would like to mark additional changes, click .
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Select any other applications that you would like to install.
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Click , and then click in the window that appears. The applications that you chose will be downloaded and installed.
You can download and install applications from websites. These applications are contained in Debian (.deb) packages. To install a Debian package:
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Download the package from a website.
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Double-click the package. It will be opened in the Package Installer.
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Click to install the package.
Installing single packages in this way is not recommended, for the following reasons:
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The packages have not been checked for security by Ubuntu members, and could contain software which harms your computer. You should only download single packages from websites that you trust.
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The package may require some extra software to run, which cannot be installed automatically. You will have to find and install this software yourself.
Some web pages have links which install applications when you click them. These are known as “apt:” links. After clicking the link, you will be asked if you would like to install additional software. Click to start the installation process.
The application can only be downloaded and installed if it is available in a software repository which is currently enabled on your computer. This means that websites cannot trick you into installing software which is potentially harmful to your computer.
