Opencore Offline Installer Windows Verified Jun 2026

The EFI partition you created needs the OpenCore files to boot. Locate the X64 folder.

Place essential drivers (Kexts) like VirtualSMC.kext and Lilu.kext into EFI/OC/Kexts , and your hardware-specific ACPI patches (SSDTs) into EFI/OC/ACPI . Why go Offline?

Download the latest release version of from the Acidanthera GitHub repository. Extract the contents. Navigate to the X64 folder.

Contains the entire macOS installer. No internet is required during installation, making it ideal for systems with unsupported Wi-Fi or Ethernet cards. Step-by-Step Offline Method on Windows 1. Download the Full macOS Installer You cannot use the standard macrecovery.py for this, as it only pulls recovery files. Instead, use from GitHub. gibMacOS.bat Selection: select "Recovery Only". opencore offline installer windows

A dropdown menu will appear. If you select C: , you will destroy your Windows bootloader. Select your USB (e.g., D: or E: ).

You must format the USB drive to be readable by both Windows and the UEFI environment: Open in Windows. Format the USB with a FAT32 partition named "EFI".

is a sophisticated boot loader primarily used for running macOS on non-Apple hardware (Hackintoshes). It is not a Windows tool, nor does it install Windows. The EFI partition you created needs the OpenCore

Once downloaded, the files will be saved inside a folder named macOS Downloads within the gibMacOS directory.

Right-click remaining Unallocated Space → . Format as NTFS (or ExFAT) and label it Install .

Download the repository from GitHub (ZIP format) and extract it to your desktop. Open the extracted folder and double-click gibMacOS.bat . Why go Offline

The MakeInstall.bat script places a generic OpenCore EFI folder on your drive. This folder needs to be customized for your specific PC hardware to successfully boot macOS. You will need to configure the config.plist file and add the necessary drivers ( .efi ) and kernel extensions ( .kext ) for your components like your CPU, GPU, audio, and network chipsets.

Create OpenCore Catalina installer from Windows- Offline install

A completely offline installer means your post-install extensions (Kexts) must be ready and loaded onto the drive beforehand. Crucial Drivers (.efi)

Before starting, ensure you have the necessary hardware and software components ready. Hardware Needed