![]() This program but that's really if you want to be paranoid. But I don't think you or your friend are likely to be doing data recovery but there are programs to delete files securely. So somebody that knows data recovery techniques could 'undelete' them. You know what your personal files are.Īnd note that -technically- deleting files doesn't delete them, it just deletes references to them. You could remove personal files manually. Sometimes they have an option at startup to do it. And if it had junk software on it originally (like McAffee - a bloated anti virus program), then it will have that on there again. If it didn't have Office originally, it won't have it when you do that. Sometimes they provide a CD/DVD that has a process that puts the laptop back to how it was when you bought it. If you want to remove your personal files, and have everything as default, then one option is contact your laptop manufacturer. When you format it, then all the programs and files are gone (data recovery aside). But it's most probably not necessary to do that. If you want to really wipe the drive so data is unrecoverable even by advanced data recovery techniques, then I suppose writing zeros on the drive will do it. And if it's a 150GB drive, the drive comes up as having 150GB free. ![]() ![]() In very technical terms, No, formatting doesn't delete everything.īut practically, unless he'd doing some advanced data recovery, if he looks on the drive for any files, and the drive is formatted, he won't see any files there.
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