If you are reading this article, it’s likely because your Macbook Air or other Apple Mac laptop has started freezing up on you, or has slowed to a crawl and is grinding away, or you may even seem to be out of disk space. If any of these are your issue, a good place to start checking is with your Mac’s ‘mobile backups’, which, despite the name, aren’t backups for your mobile devices onto your Mac, but rather are backups that your portable computer (i.e. laptop) makes to itself when you are away from your Time Capsule or other backup drive.
If you find that Finder on your Mac or Macbook has started hanging or freezing (giving you the spinning disc or beach ball of death), try these steps. These have worked for us, and others.