The best thing to do, is sell it sans HDD to be absolutely sure no information is passed along. However, if you look around a bit, you should be able to find some zero filling formatting programs that will be more than enough to stop anyone who isn't a professional data recovery expert from getting at it.
I am giving away an older computer, and need to know how clear the hard drive. Is this all I would have to do before giving it away? Is there a way that I can just go in and delete some things rather than clear the hard drive. I just don't want to pass it on with information still present. Thanks

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