If you've upgraded to macOS Mojave or later, follow these steps to keep it up to date:
To find updates for iMovie, Garageband, Pages, Numbers, Keynote, and other apps that were downloaded separately from the App Store, open the App Store on your Mac, then click the Updates tab.
NEW:If you want to perform multiple MAC address lookups, you may register with aruljohn.com and perform bulk MAC address lookups. This program displays the name of the company that manufactured your network card. You can also do a reverse lookup and find the MAC addresses registered by a company. This database was last updated on 07 September 2020.
Apple introduced malware detection to the Mac OS with Snow Leopard (Mac OS 10.6). This system consists of the quarantine of any app downloaded from the Internet, the use of Code Signing. Check your Apple warranty status. Enter a serial number to review your eligibility for support and extended coverage.
To automatically install macOS updates in the future, including apps that were downloaded separately from the App Store, select ”Automatically keep my Mac up to date.” Your Mac will notify you when updates require it to restart, so you can always choose to install those later.
If you're using an earlier macOS, such as macOS High Sierra, Sierra, El Capitan, or earlier,* follow these steps to keep it up to date:
To automatically download updates in the future, choose Apple menu > System Preferences, click App Store, then select ”Download newly available updates in the background.” Your Mac will notify you when updates are ready to install.
* If you're using OS X Lion or Snow Leopard, get OS X updates by choosing Apple menu > Software Update.
Learn how to update your iPhone, iPad, or iPod touch to the latest version of iOS.
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