Be patient, the download takes a long time and the install may look like it has died at times. Duplicate it and then drag the copy it to another locations like Downloads, if you want to save the installer.Ĩ.

After downloading the installer, it will be in /Applications folder. Disconnect all peripherals, including USB hubs.ħ. Check your applications for compatibility here…. Solve them first then upgrade.Ĥ Check HDD for free space. If you have issues on your present system don't compound them by installing over them. Run Disk Utility > First Aid from your Recovery Partitionģ. Make a bootable clone SuperDuper! or CarbonCopy Cloner or use TimeMachine.Ģ. Anything can happen at any time, so you should always keep a good backup. Upgrades/updates contain important security updates and also new features.ġ. Generally speaking, it’s always advisable to upgrade as long as your Mac meets the specs and there are no must have applications that won't run on the upgraded system. Where did you hear that? There are folks who experience problems with almost every update/upgrade but the vast majority upgrade without drama.

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