Also, your Mac will attain its lost performance, just like new. Wiping erases your Mac storage disk such that no data recovery software can recover your lost data. The process is time-consuming and should be done only in case of critical errors or when you are repurposing or reselling your Mac. Wiping process requires you to back up > erase > reinstall > restore. In contrast, the last stop uses a secure erasure algorithm, which is slow but most secure out of the four. The first stop is the normal erase, which is quick but not very secure. The Security Options dialog window provides a slider with four stops to increase the complexity of erasing algorithms and the number of passes. You can also use Disk Utility’s Security Options to erase your Mac securely. Perform the on-screen instructions to install macOS.Į) Once Mac completes the macOS installation process, use Restore From Time Machine Backup from the macOS Utilities window to restore your backed-up data to the startup disk.
Disk Utility will erase the startup disk.ĭ) Select Reinstall macOS from the macOS Utilities window. Select Macintosh HD the startup disk from the sidebar, then click the Erase tab.Ĭ) Fill the name, scheme, and format options from the pop-up window, then click Erase.
Your Mac will boot into macOS Recovery mode.ī) From the macOS Utilities window, select Disk Utility and click Continue. After the backup is over, perform the following task:Ī) Restart your Mac, then press and hold Command + R keys until the Apple logo appears. The wiping process requires you to back up important files and folders from your Mac startup disk to an external storage medium. You can either wipe or clean your startup disk depending on your requirements. You need to recurrently remove such items from your Mac startup disk to regain free space and speed up the performance of your Mac. Your Mac startup disk can accumulate junks, leftovers, caches, and other unwanted files that bloat up the disk space and degrade system performance.
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