As we mac guide updates tell all the information about mac users like how they can delete or reset their data in just a few a ... s well we provide practical training about mac troubleshoot problems. Just go through mac guide updates website that is mentioned in the above link. We mac guide updates provide all the information tar is related to mac such as how to erase everything on mac, how to take back up, reinstallation any much. If you want to erase your data from mac. so, here are the tips for how can you erase everything on a mac. Firstly you have to save your personal data that is existed in your personal computer after that select before factory reset, back up your mac at first, then next, you have to delete your personal files, third one is turn off FileVault, then iTunes authorization and icloud account removal and last one step is macOS on MacBook, iMac reinstall. There are the easy tips to remove your data on a mac. read more