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Most software updates automatically by default, but you should know how to check the updates and begin the process yourself. Knowing how to keep your software updated can improve your computer's stability and security and let you know about new features, helping you be an informed and empowered user.
Update your Operating System (OS)
Keeping your Operating System (OS) updated is one of the most important steps in protecting yourself from viruses, malware, and other Internet security threats.
Windows
To update Windows, first open the Settings menu. Select Update & Security.
On the next screen, you will be able to see if there are any updates available and how to start them.
It may take a while to install all the updates. It's safe to leave the computer and do something else while it finishes. Once it's done, Windows will probably prompt you to restart the computer. If you need to do anything else after this, Windows will prompt you; otherwise, you're up to date!
macOS
To update macOS, open the App Store, then click Updates at the top. macOS updates will be at the top of the list of available updates. On the right side of the screen, there are buttons to update individual apps or to apply all available updates.
Apple has an excellent support page on how to check for updates for macOS and apps.
Update your apps (software)
For many apps, regular updates provide new features and stability rather than security patches, so it isn't necessary to update them as frequently. However, for more essential software like web browsers and antivirus software, security updates are just as critical as operating system updates.
Many apps in both macOS and Windows will automatically check for updates when you open them. If you installed them through the App Store or another distribution platform, the program will alert you about updates. For standalone programs, take time to explore the program's menus and learn how to run the update process.
For example, in Avast! Free Antivirus, there is an Update page on the Settings screen.
However, in Chrome, the About Chrome screen in the Settings menu also checks for updates.
