While other data erasure tools take several passes to erase the free space on a hard drive, Stellar BitRaser only requires a single pass to erase it permanently. Step 4: After a while, the Mac hard drive erase complete and you can reboot the system. Step 3: Selected your Mac hard drive and click the "Erase Now" button to process. Step 2: Click the "Erase Unused Space" option on the left, to select your Mac hard drive.
Step 1: Download Stellar BitRaser for File on your Windows PC, take out the hard drive on Mac, and connect it to Windows computer.
Part 2: How to Secure Erase Free Space on Hard Drives in WindowsĪlthough the Disk Utility app of Mac OS X can erase free space on Mac hard drive, there is a chance that it might not be able to do so in a secure manner. Select any of the erasure options that you like and then click the Erase free space button.Fastest option overwrites the free space just once while Secure and Most Secure options do that three and seven times respectively. There are three different erasure options available to you which are Fastest, Secure, and Most Secure.
However, do keep in mind that this method for free space erasure is only applicable for traditional hard drive and won’t work on SSD versions that utilize flash memory. It offers you the chance to overwrite on the free space left on your hard disk so that no one can retrieve the data that was previously stored on it. You will have to use the Disk Utility app provided by your Mac OS X to erase free space on Mac hard drive. Part 1: How to Erase Free Space on Hard Drives in Mac OS X However, make sure that the erasure is done securely without damaging the hard disk. Now, if you are selling the hard drive of your Mac and don’t want the person buying it to recover the documents that you deleted then you must erase free space on Mac hard drive. However, if this free space doesn’t get overwritten, then it can be used to retrieve the previous data that it held using a data recovery tool. This free space can be utilized for storing other data. You can read more about our review and editorial process here.Every time you delete any file or document on the Mac hard drive it creates free space. However, this doesn’t affect the recommendations our writers make. We may earn commissions on purchases made using our links. IGeeksBlog has affiliate and sponsored partnerships.