. You should back up your system before installation. To do this you can use.

. Do not interrupt the installation process once you have started to update your system.

. You may experience unexpected results if you have third-party system software modifications installed, or if you've modified the operating system through other means. 
. Choose Apple menu () Software Update to check for the latest Apple software using the Mac App Store, including this update.

. Other software updates available for your computer may appear, which you should install. Note that an update's size may vary from computer to computer when installed using Software Update. Also, some updates must be installed prior to others.
![Mac Mac](/uploads/1/2/5/4/125408003/681271265.jpg)
![Install Install](https://img.gadgethacks.com/img/17/42/63518223435942/0/create-bootable-install-usb-drive-mac-os-x-10-9-mavericks.w1456.jpg)
Mac OS X 10.9 is the top recent one update from Apple for its PC devices. We people are quite fortunate that we can now use Mac OS in our Windows PC too.

 You can also download the manual update installer. This is a useful option when you need to update multiple computers, but only want to download the update once. Standalone installers are available from. About the update The OS X Mavericks 10.9.3 Update is recommended for all Mavericks users. It improves the stability, compatibility, and security of your Mac. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.
Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. For additional information. Other company and product names may be trademarks of their respective owners.
Editor's note: This article is part of our. Apple has, but before you rush out and install the new OS, you’ll want to get your Mac ready for the upgrade. As with Mountain Lion (OS X 10.8) last year, and Lion (OS X 10.7) before that, Apple is advertising Mavericks as a major upgrade that’s nevertheless simple to install. But as with every big upgrade to OS X, there are a few things you can do before to ensure that your Mac is ready to go. What you need The new version of OS X supports any Mac that works with Mountain Lion and is already running OS X 10.6.8 or later.