Secure clean Disk Information permanently

Scenario: Secure that all the information is clean and wipe out from a specific DISK.

Hardware:  16 GB removable drive

I will use the sdelete tool from Systinternals. You can download and read more about here

From command prompt run sdelete.exe /? to see the options

H:\SysinternalsSuite>sdelete.exe /?
SDelete - Secure Delete v1.51
 Copyright (C) 1999-2005 Mark Russinovich
 Sysinternals -
usage: sdelete.exe [-p passes] [-s] [-q] <file or directory>
 sdelete.exe [-p passes] [-z|-c] [drive letter]
 -c         Zero free space (good for virtual disk optimization)
 -p passes  Specifies number of overwrite passes (default is 1)
 -q         Don't print errors (Quiet)
 -s         Recurse subdirectories
 -z         Clean free space

To execute what we pretend run from command prompt

H:\SysinternalsSuite>sdelete.exe -p 10 -z f:\
SDelete - Secure Delete v1.51
 Copyright (C) 1999-2005 Mark Russinovich
 Sysinternals -
SDelete is set for 10 passes.
Cleaning free space on f:\: 1%

As you can see the disk as some information, that I do not want to delete.

SDELTEMP file is created and will grow until there is no free space, and will not override the content of the others files that I want to keep.

This process takes a while, mostly depending of the number of passes that you want to do, if you choose 25 passes you have more guaranties that information is clean from disk, but for sure will be a long process. The time of the process also depends from the size of the disk.

Hope that this information can be useful and ensure some safety and guaranties when deleting information.

Thank you for reading, feel free to comment and rate.


About rodvars
Been working in IT Services/Consulting for the past 15 years. My main areas of work are planning, development, managing and administration System infrastructures focusing on optimizing user processes, enforcing business security, performance enhancements, high availabilty and infrastucture scalability.

7 Responses to Secure clean Disk Information permanently

  1. stinger dsi says:

    You have observed very interesting details! ps nice website.

  2. My partner and I absolutely love your blog and find many of your post’s to be exactly what I’m looking for. Does one offer guest writers to create content for you personally? I wouldn’t mind writing a post or elaborating on a number of the topics you write with regards to here. Once again, brilliant web log!

  3. You made some nice points there. I did a search on the issue and found nearly all folks will consent with your blog.

  4. Paul Troiani says:

    I just want to say I am just beginner to blogs and certainly savored this web page. Very likely I’m planning to bookmark your website . You amazingly have awesome article content. With thanks for sharing with us your blog site.

  5. I get pleasure from, lead to I discovered exactly what I was looking for.
    You have ended my four day long hunt! God Bless
    you man. Have a great day. Bye

  6. Pingback: Fix Win32k.sys File Location Errors - Windows XP, Vista & Windows 7, 8

  7. Pingback: speed booster

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: