How to check data usage on a broken MacBook?
I just turned on my MacBook Air to find that the display is broken and has vertical lines all over the screen. I’m taking it to the Apple Store but I was told to bring an external hard drive with enough storage to be able to backup my MacBook before the repair begins. My question is basically this, how do I check how many gigs my MacBook is using before I buy an external hard drive? If my MacBook is only using like 80gigs I don’t want to spend the extra money and buy a 250gb or even 500gb storage that I won’t use. Any way to check this? Keep in mind I have 0 access to my MacBook as the display is completely broken
MacBook Air 13″, macOS 10.15