How to reset your Mac (macOS or OSX) to default settings and erase the disk? Youtube downloader for mac on safari. As a Mac user, you would never wish to make your iCloud or personal hard disk data public.

Power off the mac. Then start the Mac and hold down the Command and R keys at startup. Hold these keys until the Apple logo appears. After your computer finishes starting up, you should see a desktop with an OS X menu bar and an OS X Utilities window.

Therefore, if you are selling/giving away your mac or iOS device, you must wipe all data from your computer or mobile device. The best way is to perform a factory reset, which may also be useful when your computer or mobile device has problems. You can delete all data manually, but this will take a great deal of time and you might not be able to delete certificates and licenses, which you have purchased and added to your apps.

Furthermore, a factory reset will return your mac or mobile device to the default settings - wiping all data will make it appear as if it has just been unpacked from the box. This article demonstrates the factory reset with other tips and information. Table of Contents: • • • • • • • • •. It is recommended to run a free scan with Spyhunter - a tool to detect malware and fix computer errors.

You will need to purchase the full version to remove infections and eliminate computer errors. Check works before you start performing any factory reset High Sierra works on Apple's latest file system called APFS.

Users rarely encounter problems when resetting their Macs, however, sometimes an error appears displaying 'Could not create a Preboot Volume for APFS install'. Apple support states that you should choose macOS extended when formatting your drive, and not the new file system, APFS.

If, however, you have already started to reset your system and have this problem, there is a solution. First, shut down your Mac, and then hold down Option, Command and R while turning on your computer. This combination will start an Internet Recovery and you can try to reinstall High Sierra. You may be forced to repeat this step several times until it works. Create an BackUp Create a backup of everything you will/may need in a future.

Use Time Machine or another application to backup your system. We recommend that you make two cloud and two physical (local or remote) backups.

Also consider using drive cloning apps such as Carbon Copy Cloner, Super Duper, ChronoSync, or similar. These create an identical copy of your drive and, unlike Time Machine, are bootable backups (i.e. If your computer ever stops working, you can boot your computer directly from these copies). Disable FileVault FileVault encrypts the entire disk to protect against unauthorized access to data stored on your startup disk. People rarely use this feature, but you may need to check it out, especially if you log in in with your account password (FileVault requires password secured log in).

How to disable fileVault? Enter System Preferences and choose Security & Privacy. Then select the FileVault tab, click the lock button to unlock it. Enter an administrator name and password and turn off FileVault. Then, restart your Mac. When your computer loads, decryption of your startup drive begins in the background.

Decryption of all disks on your mac will take some time - you can check progress by entering the FileVault tab in Security & Privacy preferences. Remove iTunes Authorizations iTunes has a built-in authorization tool used to grant permission to access all iTunes content from the device/s you authorized. The maximum number of authorized devices is five, so do not give away your iTunes content and access permissions when selling your old mac. Your content will not be deleted from your device when you deauthorize it - you will simply deny permission to access protected content (which can be recovered anytime by re-authorizing the same device). Do not skip the deauthorize step, since if you sell your authorized device and later decide you wish to deauthorize it, you will be forced to deauthorize all of your devices and then re-authorize all usable devices again. This will be time-consuming and inconvenient.

How to deauthorize your Mac: Open iTunes (login with your Apple ID if required). From the menu bar at the top left of your screen, choose Account, select Authorizations, and finally click on 'Deauthorize This Computer.'

If required, enter your Apple ID and password and click Deauthorize. Deactivate programs and remove authorizations Many third-party applications require machine authorization and activation, especially image, audio/video editing, and software design packages. For example, most Adobe programs require activation. To activate an application, log in with a valid user licence. Deactivation dissociates an application from a valid user licence, so if you need to use the same application on another device, you do not need to uninstall - simply deactivate and use the licence on the other machine. Look up your programs list to find and deactivate programs.