If you haven’t backed up your data in awhile or you if you aren’t familiar with macOS Big Sur 11.6.8, the pre-installation process could take you a lot longer. You might be able to get through these steps in 30 minutes, but it all depends on your skill level and the current state of your Mac. It’ll walk you through the most important steps to take before you initiate the process. If you don’t know how to properly prepare for a macOS upgrade, take a look at our pre-installation guide. Make sure you’re prepared before you start the macOS Big Sur 11.6.8 download. If you’ve prepared for the move, and you’re on a fast Wi-Fi connection, it could take less than 20 minutes to complete. That said, we can help you approximate how much time you should set aside should you choose to install the firmware on your device. We can’t tell you exactly how long the process will take because it will vary. Moving your device from one version of macOS to another can cause problems so you’ll want to monitor the download and installation. If you decide to install macOS Big Sur 11.6.8 on your Mac, you’ll want to set aside some time to get the upgrade properly installed on your computer.

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