On a Mac, click the Apple logo and then About this Mac, and select the Storage tab. On Windows, this information is harder to find than it should be, but the easiest way is to open the Defragment and Optimize Drives tool (type “defragment” into the search menu in the taskbar). Next, figure out which type of storage your computer has. For Macs, Apple recommends logging out of any iCloud services, including iTunes and iMessages. How you do this depends on which operating system you have and what type of storage drive your device has.īefore you wipe a computer, make sure that you have a backup of any files you need and deactivate any software that requires doing so. On most devices, wiping your data securely is pretty straightforward, and doing so can prevent your data from being recovered by someone you would rather not have it. Your computer, phone, or tablet holds all kinds of personal information about you, and before you sell, return, recycle, or donate it, you should make sure to delete all of that information correctly.

How to erase computer hard drive