This USB can be used to install a clean copy of Apple Mac OS X 11.1 Big Sur 2021 or to update your existing system to 11.1 Big Sur 2021
Installing, Recovering or upgrading your software from a USB is NOT a quick process and can take 30-45 minutes to complete. Please be patient and allow the process plenty of time to finish.
- Mac with an Intel Processor
- Minimum 2GB of RAM
- Minimum 15GB of disk space available
- iMac :2014 onwards
- MacBook Air :2014 onwards
- MacBook :2014 onwards
- Mac Mini :2014 onwards
- MacBook Pro : 2014 onwards
- Mac Pro : 2014 onwards
- Xserve : 2014 onwards
- Insert the USB in your USB Slot. It should appear on your desktop. Do NOT click on it.
- Restart your mac.
- As soon as you hear the startup chime press and hold the option [ALT] key on your keyboard.
- Choose start from USB symbol.
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