Wiping a Drive

Written by Allen Wyatt (last updated January 13, 2020)

1

If you've been using Windows for quite some time, you may be familiar with the command prompt and some of the commands you can use there. If you are using Windows 8 or Windows 10, you may not be familiar with a change made to a familiar command: format.

Starting in Windows 8, the format command now allows you to use the /p switch, which causes the command to not only format a drive, but also to perform as many passes on the data surface as you want. Multiple passes decrease the likelihood that someone could successfully retrieve information that used to be on the drive. If you plan on giving the drive to someone else and you previously had information on the drive you don't want them to potentially recover, then using the /p switch is a good idea.

As an example, let's say that you had an external drive (F:) that you want to give to someone else. After you've copied all the information from the drive, you can display the command prompt window (as discussed in other WindowsTips) and then use this command:

format f: /p:5

This command performs 5 formatting passes. While this may take a while to complete, the process makes the probability of anyone accessing old information vanishingly small. (It sure beats the old way I used to make sure nobody could access data on a drive I no longer needed: Hitting it multiple times with a three-pound sledgehammer.)

 This tip (2596) applies to Windows 8 and 10.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Closing Documents after a Hyperlink

When you click a hyperlink that takes you to another document, Word dutifully opens the new document in its own window. ...

Discover More

Copying Paragraph Formatting with the Mouse

When you get one paragraph formatted just the way you want, you might want to copy that formatting so it can be applied ...

Discover More

Removing Cells from a Selected Range

Select a large range of cells and you may later want to remove a few cells from that selection. This is not as easy as ...

Discover More
More WindowsTips

Choosing How to Use Multiple Monitors

Do you have multiple monitors (or a projector) hooked up to your system? Here's how to utilize that second display device ...

Discover More

Disabling Automatic Driver Installation

Whenever you plug something into your computer, Windows dutifully tries to find and install the driver for your new ...

Discover More

Formatting a USB Drive with Disk Manager

Windows 10 provides multiple ways to format a USB drive. Discover how to use Disk Manager to easily format a USB drive.

Discover More
Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] (all 7 characters, in the sequence shown) in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 1 + 1?

2020-01-13 10:21:42

J. Woolley

You might be interested in Disk Wipe: http://www.diskwipe.org/


Newest Tips