Remove personal data without doing a full reinstallation
Create a new user with admin privileges named
Victor(or any name of your choice)Login with
Victor, and remove fully (Delete the home folderoption) all other accounts.-
Start
Disk Utilityand select theErasefunction (what you did in step 4).Just do an
Erase Free Spaceand place the cursor in the middle position which will do a 3-pass erase. This is sufficient to protect you against any normal user and normal recovery software.