Securely Delete unused disk space

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Possible Duplicate:
Is there a program to truly delete all deleted files?

I recently moved a bunch of files off my harddrive. How can I zero out the unallocated disk space to make sure all the files I recently moved off the harddrive are unrecoverable?

This is windows-xp on my work computer, so I would prefer not to have to install anything if possible. I am familiar with shred, but I think that only works if you still have the files.

Thanks

Jarvin

Posted 2010-08-12T20:07:27.767

Reputation: 6 712

Question was closed 2010-08-12T23:01:55.827

@kez: My question is a little different because I don't want to install anything, so the accepted answer on the other post doesn't work for me. If you want to put your Cipher answer here, I would be glad to accept it. (I read every post with "delete" in it before posting... but I missed that post because windows is one of my hidden tags... guess I'll have to learn from that). – Jarvin – 2010-08-12T21:20:10.607

If the answer on the dupe solves your problem, you can upvote that. – random – 2010-08-12T23:02:43.207

Answers

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You will have to install a 3rd-party app for this.

There are plenty - many are free.

In future you may want to use something like (true crypt dot org) to store sensitive files.

See http://www.techsupportalert.com/best-free-secure-erase-utility.htm

Also check out serase (I think that's what it's called), made by Mark Russinovich. He has an awesome set of tools - search for sysinternals. It might be what you're looking for.

Harv

Posted 2010-08-12T20:07:27.767

Reputation: 147

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CIPHER /W is a built-in command that will do the job :-) http://superuser.com/questions/33886/is-there-a-program-to-truly-delete-all-deleted-files/175273#175273

– Kez – 2010-08-12T21:01:18.327

Asked: 2010-08-12T20:07:27.767

Viewed: 2 627 times

Active: 2017-05-10T14:40:44.193