when ever I try to download MacOs Big Sur it says not enough space

Big Sur requires 35.5GBs of available space on the drive.

See this link to free up needed space: Free up storage space on your Mac - Apple Support

That is iCloud storage. It has nothing to do with your Mac's local storage. Please provide the storage space in Apple Menu->About this Mac->Storage



Are you sure you have over 1000GB available?

Where are you seeing this availability?

1000MB is not the same as 1000GB

Can you provide a screen shot from Apple Menu->About This Mac->Storage?

That's iCloud storage. What does Apple Menu->About This Mac->Storage indicate?

You have a MacBook Air with an internal 1TB or 2TB SSD?

I think I heard that somewhere. :)

I'll leave this to you.

dialabrain wrote:

I think I heard that somewhere. :)

I'll leave this to you.

You can continue to answer too if you want, I don't mind.