The next step is to create a bootable macOS Big Sur USB installer. Create bootable macOS 11 Big Sur USB installer Just double-check to make sure that syncing was active in these browsers. If most of your usage is in a browser like Chrome, Safari, or Firefox, your bookmarks, passwords, and other information will already be backed up to your Google, iCloud, or Firefox account, respectively. It is time-consuming but better than nothing. This is the best and fastest way to backup data and restore it later on a Mac.Īlternatively, you can backup files manually to any cloud storage service. If you have an external drive, simply plug it in, and use Time Machine in macOS to backup your data. The first step is to backup your data unless you don’t have any important files on your Mac. If you are upgrading from an older version of macOS, make sure that your Mac is compatible with macOS Big Sur. Even if it is not, you can follow our guide to install macOS Big Sur on unsupported Macs.You might also want to keep the license keys for apps handy for reinstallation. Take this time to see which apps you don’t use anymore and make a note so you don’t reinstall it. Make a list of the apps that you use on your Mac.This will be formatted and set up as a bootable installer for macOS Big Sur. You should have a USB drive, at least 16GB in size.If you have a fast Internet connection, you can move your files to iCloud, Google Drive, OneDrive, Dropbox, or any other storage provider of your choice. It is good to have an external hard drive handy to backup your data. AppleCare+ cost and coverage for iPhone, iPad, Mac, Apple Watch, and other devices

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