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Sharpynz Author

Level 1

8 points

MacOS Big Sur

Apple keeps insisting to upgrade from MacOS Catalina to MacOS Big Sur. When I go to do it, my Mac says there is not enough memory. Can you delete Catalina and then install Big Sir?

MacBook Air 13″, macOS 10.15

Posted on Jan 6, 2021 10:32 AM

Top-ranking reply

dialabrain

Level 10

125,387 points

Posted on Jan 6, 2021 11:33 AM

Big Sur requires 35.5GBs of free space to install.

See this page: How to free up storage space on your Mac - Apple Support

Assuming you have enough free space, try again while in Safe Mode.

How to use safe mode on your Mac - Apple Support

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MacOS Big Sur

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