How Mac Upgrades the system for free

How does the Mac upgrade the system for free? What can be done to upgrade the MAC system safely? This article is very useful for users who want to save money, then read the Mac free upgrade system process carefully.

First step: Backup the system before upgrading.

Generally, there is no problem with upgrading Mac OS system, but in order to prevent it, we'd better use NB time machine to back up the whole system to facilitate error recovery, as shown in the following figure:

Step two: After the backup system is complete, we go into the app Store and find the free OS X mavericks upgrades that Apple pushes, as shown below:

The third step: after we click the free upgrade, will eject the login Apple ID dialog box, we enter our account password login can, as shown in the following picture:

Fourth step: After the new system update file download interface, because the upgrade file is larger, so the download time may be a little longer, the time depends mainly on your network. Here is a reminder that, because the Apple server is not at home, if you feel that your network is good, but download the upgrade file is very slow, you can try to set the computer DNS address to 178.79.131.110 to get a better download speed

The fifth step: After downloading completes, we click to upgrade installs then, completes then can upgrade successfully.