Select your USB drive once the Mac is on.After the operation is completed, turn your Mac on while holding the Option key.In the right-bottom corner select your USB drive.Search for the copy of MacOS High Sierra Installer and open it.

Pick OS X Extended (Journaled) and format it.If you store them in the cloud or an external drive, they will be safe, and you will avoid any data loss. Open Terminal and type csrutil disable Īlso, it is wise to store backups in case you encounter any damage to your system.While the computer is still restarting hold Command + R to reboot your Mac into Recovery System.Click on the Apple's icon and select Restart.If you are not sure whether it is disabled or it re-enables use the following instructions to fix this issue: Learn how to install MacOS High Sierra on an older Macīefore you start the procedure, it is important to make sure that SIP is disabled. 2007 iMac 7,1 (If you have updated the CPU to Penryn-based Core 2 Duo).2006-2007 Mac Pros, MacBook Pros, iMacs, and Mac Minis.Unfortunately, but this hack won't work on the following Mac computers: Early-2009 or newer white MacBook or Mac Mini.Late-2008 or newer Aluminum Unibody MacBook or MacBook Air.Early-2008 or newer iMac, Mac Pro, or MacBook Pro.You can install MacOS High Sierra on the following devices: Later, get a copy of MacOS High Sierra, and you are able to start the procedure. First of all, get a USB drive with at least of 8 GB of free space and download MacOS High Sierra Patcher. If you have still decided to install MacOS High Sierra on an older Mac, you will need several things before you can start. Likewise, weigh the advantages and disadvantages before proceeding. Additionally, note that there are high risks since performing such actions goes against Apple's advice. However, there are specific requirements, and not all older Mac devices can be “hacked” that way. You can install MacOS High Sierra on an older Mac. To restore your computer's peak performance, you have to purchase licensed version of Mac Washing Machine X9 Mac Washing Machine X9 repair software.

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