If you used Disk Utility from macOS Recovery, you can now restart your Mac: choose Apple menu  > Restart.

The order of repair in this example was Macintosh HD - Data, then Macintosh HD, then Container disk4, then APPLE SSD. Make sure you click the drive you want to securely delete: you do not want to erase some other hard drive by mistake When you’re ready, click the Erase button. Connect the drive you want to securely delete, then click it in the sidebar. Keep moving up the list, running First Aid for each volume on the disk, then each container on the disk, then finally the disk itself. To wipe your mechanical drive, open Disk Utility, which you’ll find in Applications > Utilities. If you're asked for a password to unlock the disk, enter your administrator password.Īfter Disk Utility is done checking the volume, select the next item above it in the sidebar, then run First Aid again.If the button is dimmed and you can't click it, skip this step for the disk, container, or volume you selected.If there is no Run button, click the Repair Disk button instead.Read more about clearing cache on Mac here. In this example, the last volume on the disk is Macintosh HD - Data.Ĭlick Run to begin checking the selected volume for errors. Here’s how to remove cache files: Open Finder > Go > Go to folder Type /Library/Caches and clean the contents of the folders that you find in there (make sure you delete the contents and not the folders) Empty the Bin. Learn more about reinstalling m acOS.For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab. If you want your Mac to start up again from the volume you just you erased, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions.When done, quit Disk Utility to return to the utilities window.When asked what you want to erase, select Remove everything. Optional: If you previously used Disk Utility to add internal volumes other than Macintosh HD, you can erase them individually using the same process. In Windows 10, open Settings > Update & security > Recovery, and then click the Get Started button.If this button isn't shown, click Erase instead. Format: APFS or Mac OS Extended (Journaled), as recommended by Disk Utility.Click the Erase button in the toolbar, then enter the requested details:.

Select Macintosh HD in the sidebar of Disk Utility.From the utilities window, select Disk Utility and click Continue.If asked, select a user you know the password for, then enter their administrator password.

Start up from macOS Recovery: Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R.

How to clean my mac hard drive