(Note: Your Wi-Fi network needs to use WPA or WPA2 encryption. WEP encrypted networks are not supported.) Either plug-in an ethernet cable or you’ll be prompted to select your Wi-Fi network and then enter the password for your wireless network.Turn on your Mac and hold down Command-R.
Since your Mac has a new hard drive installed it won’t have a Recovery Partition so you’ll need to reinstall OS X over the Internet. OS X Lion (aka OS X 10.7) introduced a feature called OS X Recovery. OS X Recovery lets you reinstall OS X from either the Recovery Partition or over the Internet from servers that Apple operates. These instructions assume that your Mac is using OS X 10.7.0 or higher and that you’re restoring to the same Mac that was used when you made the Time Machine backup.
#Install new mac os an a new hard drive how to#
(If you’re looking for instructions on how to restore an entire Time Machine backup on to a new Mac read this.) The restore process requires you to first install OS X onto the new hard drive and then restore everything from your most recent Time Machine backup. I’ve written previously about the importance of backups and how to set up and monitor Time Machine. It can be used to backup the contents of your Mac’s internal hard drive to an external hard drive or to an Airport Time Capsule. It comes bundled with every Mac that shipped with OS X 10.5 or higher. Here are instructions on how to restore all applications and personal files from a Time Machine backup onto a new hard drive. Time Machine is a backup application made by Apple. When this happens, a Time Machine backup can save your data. At some point, everyone will experience a hard drive failure.
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