: Big Sur introduced a major visual overhaul with refreshed app icons, a new Control Center, and updated notification layouts.
macOS Big Sur (11) is officially obsolete, having received its last standard security update in September 2023.
Here is the general workflow to get macOS Big Sur up and running on your unsupported Mac using the OpenCore Legacy Patcher. Step 1: Download the Tools
Your Mac should now boot directly into macOS Big Sur (no USB drive required). Check that Wi‑Fi, sound, graphics, and other essential hardware are working. If you plan to receive future macOS updates, do install them through the System Preferences panel directly; instead, always use the OpenCore Legacy Patcher’s Post‑Install tool to apply updates safely.
Once downloaded, click , select your USB drive, and let the process complete. Phase 3: Build and Install OpenCore Return to the main menu of the OCLP app. Click Build and Install OpenCore . Macos Big Sur Patcher
While it was an excellent tool, development has largely shifted toward OpenCore Legacy Patcher. OCLP handles graphics acceleration and system security updates much more efficiently. Patched Sur is mostly used today for specific legacy edge cases. Hardware Compatibility Check
He called his tool: (later renamed to Patched Sur ).
“The goal is simple: let your unsupported Mac run Big Sur as natively as possible, with as few compromises as possible.” — Ben Sova, 2020
Download the latest version of the from its official GitHub repository. Launch the app and select Download macOS Installer . : Big Sur introduced a major visual overhaul
Right now, your Mac can only boot into Big Sur because the USB drive is plugged in. Let's fix that.
Your available (e.g., if you already installed an SSD)
Patched Sur is no longer actively maintained . Its creator has archived the repository, meaning it does not receive updates for newer macOS versions or security fixes. While it may still work for Big Sur, most advanced users and developers now recommend OpenCore Legacy Patcher instead.
: Access a faster, more energy-efficient web browser with built-in translation features. Popular Patcher Options Two main tools dominate the macOS patching landscape: 1. OpenCore Legacy Patcher (OCLP) Step 1: Download the Tools Your Mac should
Select the EFI partition on that USB drive to write the bootloader configuration. Step 5: Boot into the Installer Shut down your Mac completely.
He released (the renamed macOS Big Sur Patcher) in August 2021 with:
Today (2026), many Macs that ran Patched Sur are now running OCLP with Ventura or Sonoma. But for a brief, glorious year, the macOS Big Sur Patcher was the only lifeline for thousands of old Macs during a pandemic-era chip shortage when new Macs were expensive and hard to find.
