While attempting to factory reset my MacBook I tried to delete the Macintosh HD thing and then it simply deleted everything idk if I deleted the wrong or something because it won’t let me reinstall macOS Big Sur and Macintosh is just gone and I don’t know what to do
[Edited by Moderator]
Original Title: Deleted everything
MacBook Air (2018 – 2020)
It appears you've managed to erase your startup volume. You'll need to restart the Mac in recovery mode, reformat the internal drive and then reinstall the OS. All of this is done while booted in recovery mode.
How to start up from macOS Recovery - Apple Support
Once in recovery, select and launch Disk Utility. Make sure the View in Disk Utility is set to Show All Devices. Then select the topmost item in the sidebar - APPLE SSD AP0256Q Media - and click Erase. Format the drive using the APFS format and GUID partition scheme. Use the default name "Macintosh HD".
Erase and reformat a storage device in Disk Utility on Mac - Apple Support
WIth that done, you can quit Disk Utility and then launch the Reinstall macOS application.
How to reinstall macOS - Apple Support
It appears you've managed to erase your startup volume. You'll need to restart the Mac in recovery mode, reformat the internal drive and then reinstall the OS. All of this is done while booted in recovery mode.
How to start up from macOS Recovery - Apple Support
Once in recovery, select and launch Disk Utility. Make sure the View in Disk Utility is set to Show All Devices. Then select the topmost item in the sidebar - APPLE SSD AP0256Q Media - and click Erase. Format the drive using the APFS format and GUID partition scheme. Use the default name "Macintosh HD".
Erase and reformat a storage device in Disk Utility on Mac - Apple Support
WIth that done, you can quit Disk Utility and then launch the Reinstall macOS application.
How to reinstall macOS - Apple Support
Unable to reinstall macOS Big Sur after deleting Macintosh HD
