


This step-by-step guide will help you preserve what’s currently on the drive (for safety sake), wipe it completely clean, reinstall OS X Yosemite (or Mavericks) and make it run like the champion it should be. I just applied this process a few days ago and my laptop is running like I just opened the box from Apple. If you want to reformat Macbook Pro and get it back to what it was like right off the shelf, you’ve come to the right place. And thanks to my endless knack for figuring things out on my own, I’ve clogged up the majority of them with useless software, damaging commands, adware, duplicate files and just about anything else you can add to a hard drive to slow it to a crawwwwl. A disk recovery application may be able to recover the data.Update! I have updated this tutorial to include MacOS Sierra which is a free download from Apple for all Mac users. When you select the ‘fastest' option, not all the files on the disk are erased. It is important to ensure that the slider is positioned in the extreme left-hand side to ensure there your data is stored securely. Now move the slider in the window to the extreme left side where it points to ‘fastest.' Now click on ‘OK.' Instead of proceeding, click on ‘ Security Options". You will receive a prompt notification that will ask you to wipe the complete data. On the top of the window, click on the erase button.Ĥ. Under the ‘ Disk Utility' folder, click on the name of your external hard drive. Open Finder app > Applications > Utilities Folder > Disk Utilityģ. Connect the external hard drive with your Mac via USB cable and wait for it to get recognized.Ģ. Follow the steps given below to reformat the external hard drive on Mac without losing data.ġ. Reformatting external hard drive on Mac is a bit different because it doesn't have the option of quick formatting, but it still has the same option with a different name. How to reformat the external hard drive on Mac without losing data?
