Is there a way to back up my computer without an additional external device?
Is there a way to back up my computer without an additional external device? I want to upgrade my OS.
MacBook Air 13″, macOS 10.13
The idea of Backup is to place it on an external drive for when the internal drive get messaged up or wanting to revert to a previous macOS or to recover a file deleted form internal drive and get it back. So, to backup will require an external drive.