How to Perform a Fresh Install of macOS Sequoia on iMac 2017 using OCLP 2.4.1

By Ufuk Durgun
FreshInstall guide iMac macOSSequoia OCLP OpenCoreLegacyPatcher
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macOS sequoia

How to Perform a Fresh Install of macOS Sequoia on iMac 2017 using OCLP

A clean installation of macOS Sequoia on a late 2017 iMac using OCLP can resolve speed issues and clean up system storage.

Step-by-Step Clean Install Process:

  1. Prepare a USB Drive: Plug in a 16GB+ USB drive. Open the latest OpenCore Legacy Patcher (v2.4.1 or newer).
  2. Download macOS: Select Create macOS Installer, then Download macOS Installer, and choose macOS Sequoia.
  3. Build OCLP: Once downloaded, flash it to the USB. Then, choose Build and Install OpenCore and target your USB drive.
  4. Format Disk: Reboot, hold Option, boot from the EFI Boot on USB, and select the macOS installer. Use Disk Utility to erase your internal SSD as APFS.
  5. Install & Patch: Install macOS Sequoia. After setup, open OCLP on the iMac and apply the Post-Install Root Patches for graphics acceleration.

Original Question: "About fresh installing OCLP (2.4.1) MacOS Sequoia on iMac 2017"

My iMac has been running a little slow for a while now.
Even on the default 256 GB SSD.
Maybe it's time for a fresh install.

Any advice on how to go about it? Besides backing up my data.

submitted by /u/yodajedi01
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on 12:52:00 PM

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