I need to reinstall big sur
After Upgrade from catalina to Big sur my Mac Mini is very slowly and have two Aplication Folder
Mac mini, macOS 11.1
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Hi!
You can download MacOS from App Store:
https://apps.apple.com/lv/app/macos-big-sur/id1526878132?mt=12
You can open it immediately or create bootable usb:
https://support.apple.com/en-us/HT201372
I really hope this helps to understand!