What Really Happens When You Press 'Delete'


Delete Waste, Improve Performance

Is your computer not performing like it used to? AOL is pleased to introduce AOL Computer Checkup Premium to help boost performance, and clean up waste and unwanted files from your PC . And you can try it free for 30 days*, after which it's only $4.99 per month.


• Deletes unwanted, temporary files
• Cleans up system clutter
• Reduces error messages
• Increases speed and performance



Find out more

By clicking "Try it now," you agree to our Terms and Conditions and Payment Terms. Scroll down or click here for details.
If you're an AOL member, we will bill you using the method of payment we have on file for your account. If not, it's easy to sign up with any email address.
Back in 2000, Sir Paul McCartney’s bank data was left on a merchant bank's computer. The machine was then sold without the files or drive being wiped clean. The data was then discovered, and the story ended up all over the news about how this particular bank and possibly others like it were not taking precautions to erase data on old computers, which were later sold or donated.

Forgetting to delete pertinent information from any hard drive is worrisome. Copy machines also pose risks. As CBS reported in April, since 2002, most copiers are installed with hard drives that save images of all copied documents. When these machines are then sold or discarded, the stored information, which can include private information such as medical records, frequently remain intact.

What does ‘delete’ mean?
Many users are still convinced that when they delete a document or file on their computer, it vanishes into thin air -- but that’s hardly the case.

As “Sam,” a security engineer who wishes to remain anonymous because of the nature of his job, explains: “When a user ‘deletes’ a file, it's not really gone. Deleted files are sent to the Trash folder. At this point, files can still be recovered.” However, even if the Trash folder is emptied, it doesn’t mean the file has disappeared completely. “But the longer a deleted file is left on a drive, the greater the chance the file cannot be recovered,” Sam says.

Everyday PC maintenance
There are a number of programs out there that help ensure that your deleted files are really deleted. In addition to guarding your privacy by removing traces of your Internet browsing history and files and programs you have used, Computer Checkup Premium also cleans registries, removes clutter by clearing out temporary files, and helps solve the problem of a fragmented hard drive by rearranging data so it can be accessed more quickly.

If you have accidentally deleted files, Computer Checkup Premium also offers an '"undelete" function.

Formatting and disk wipe
Then there are times when you really do need to permanently delete everything. If you are in the process of donating or selling your computer, or if you have sensitive information stored on it which you wish to be deleted permanently (such as medical information, bank or legal documents, or Social Security numbers), tech experts recommend reformatting your hard drive or performing a disk wipe. According to The Tech FAQ, “Formatting the hard drive or any of its partitions will completely erase all data that is present.”

A thorough “disk wipe” will essentially overwrite your hard drive to the point where recovery is impossible. As “Sam” explains, “When the U.S. Government wants to delete information from an entire hard drive, it employs the Department of Defense disk wipe, which means the entire drive has its data overwritten with a random pattern of zeros and ones (binary data) three times. At this point, any data on the hard drive is considered unrecoverable. In some instances, the platters are removed from the hard drive and dipped in caustic acid -- referred to as ‘erase by physical destruction.’”

Users can (and should) erase the hard drives of their old computers so their data cannot be found by anyone else (think Paul McCartney). One program "Sam" and other tech experts recommend is Darik’s Boot and Nuke, which will delete the contents of a hard drive with certainty.

Consequences of not deleting files
Sensitive information carelessly stored on computers can lead to identity theft, and also harks the growing need for computer forensics.

In 2007, for example, a forensics expert found that the new publisher of the Minneapolis Star Tribune had transferred sensitive information over from his St. Paul Pioneer Press computer, where he previously worked. In another case, the insurer Health Net was recently sued as a result of a missing computer hard drive that stored the medical records of several thousand customers.

Deleting files from your computer is similar to shredding documents: Store what you need, and digitally “shred” those you don’t.

-- Tara Taghizadeh --

Downloads From AOL

Search and Recover

Search and Recover can restore critical work and cherished memories you thought were gone forever. Photos, files, songs, email or videos, lost or deleted even years ago, can be safely recovered with a single click.

PerfectSpeed

PerfectSpeed gets the clutter and waste off your computer by quickly removing unnecessary and temporary files, helping you recover valuable disk space in seconds. By optimizing your computer's hard drive, repairing errors and clearing free space, your PC will run more efficiently.


Also See...


Easy Steps to Improve Your PC's Performance

Unless your computer is fresh out of the box, it's probably not running as fast as it used to. Much like oil changes for your car, a little periodic maintenance can help extend your computer's lifespan.

Extending Your Computer's Lifespan

The average lifespan of a desktop computer is only 2-5 years. How do you make it last longer? Easy tips like clearing dust and watching its temperature can help a lot.

How to Speed Up Windows

Is your computer running very slooooow? If you feel like you've tried everything to make it run faster, here are some simple tweaks and changes you may not have tried that can make your system not only more efficient, but also faster.

Browser Tricks to Improve Performance

When browsing the Web, does your PC sometimes grind to a halt? It’s possible your browser isn’t configured for peak performance. Get tricks to help get you going in the right direction.

Help! I've Lost My Files

If you have that sinking feeling you deleted a file that you meant to keep -- or worse, suffered a crash and lost a LOT of files -- here are tips for recovering your work and maybe reclaiming some of the data.

*To avoid being charged the recurring subscription fee, simply cancel before the free-trial period ends.

By clicking "try it now", you are agreeing as follows:

• You agree to our Terms and Conditions. Also, each product may be subject to additional terms required by the product's vendor, which you can review on this page.

Payment Terms: You agree that we may charge your payment method for the fee(s) stated above, plus any taxes and fees, until you revoke this consent or cancel your subscriptions(s). Subscription fees are charged at the beginning of each subscription period. Price does not include taxes or fees (if any). If your offer includes a free trial, there is one free trial per customer per product, and the free trial begins immediately. To avoid the recurring subscription fee, simply cancel before the free trial period ends.

• We may provide you with important information online or by e-mail.

Discover AOL provides information about AOL's many products and services, including computer tech support (AOL TechGuru), free software (AOL Desktop 9.7, AOL Desktop for Mac, AIM), Safety and Security tools (McAfee® VirusScan® Plus -- Special edition from AOL) and free services like Video, Radio, Email, Instant Messaging and Parental Controls. Check out AOL A-Z for a full, alphabetical directory of everything on AOL.