Question about Dell Dimension 4100 (-JM0TB01) PC Desktop

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Erase information from computer

How do i erase all the information on my computer before selling

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Go to www.goggle.com and type in
--- hard drive eraser ---
Pick a program to do what you are asking. example - the 1st listing should direct you to this site
--- http://www.harddriveeraser.org/download.php ----
Download the free program and then run it to destroy your data on the harddrive.

Posted on Sep 13, 2009

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If u mean all, that means everything including the systems and programs u downloaded/installed, welll just format it.. everything will be erased.. but it would be better to install the basic applications on ur pc before selling it to bid a higher price like OS, ms office tools, media player...

Posted on Sep 13, 2009

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If You are familiar with the windows installation, you can reinstall windows. During installation, the system asks You about partition where You want to install windows. So: 1. Select option Delete partition, and answer the question of the system "yes". This option erase All your existing information. 2. Create the partition on the same disc. 3. Install the windows on the same partition. That's all.
If You have another partitions or disc, just format it. And don't forget backup Your personal data!
In any case, is much better to sell the computer with the operation system recently installed - it works much better than a PC with used OS. Best regards.

Posted on Sep 13, 2009

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Posted on Jan 02, 2017

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How to Wipe, Degauss, or Destroy Data on a Hard Drive


You own a computer and then purchased a new one. After moving all of your important data to the new computer and deciding to sell or donate the old computer you are faced with the question of deleting the data or destroying the hard drive. One one hand, if you delete the data and reinstall the operating system the next owner can quickly use the computer. If you destroy the hard drive, another drive would have to be installed for the computer to be useful again. 
What if the hard drive lands into the wrong hands? Your tax return, financial records, intimate photos, and more could be used against you. 

With the 2007 NBA Playoffs on TV this month, an interesting connection has arose. It seems the San Antonio Spurs guard, Bruce Bowen, and his wife have filed a lawsuit against a local computer firm when their hard drive and data ended up on another person's computer. The recipient of the hard drive contacted Mr. Bowen and informed him of the breach of privacy. To read more about this incident visit the news article. As a computer consultant myself, I see a huge breach of computer privacy with this case and I foresee Mr. Bowen winning the lawsuit easily.  


Now what can you do to avoid a similar situation as Mr. Bowen's? First you have to decide if you want to permanently erase the data or destroy the drive. If you decide to permanently erase the data, you have several options. However let's go over what you DON'T want to do.
Don't just delete your data and empty the recycle bin
Don't just format the hard drive
Don't just format and reinstall Windows or another operating system
Why don't you want to do the above? It seems this would be enough to make sure your data isn't compromised.

Let's take a step back and understand how data is stored on a hard drive. When information is written to a drive, the location of the information is stored in a file that resembles a table of contents for a book, On computers running DOS and Windows operating systems, the File Allocation Table (FAT) or the Master File Table (MFT) holds this information. When a file is deleted, the FAT or MFT table is updated to tell the computer the space on the hard drive is available, however the actual data is not deleted until it is overwritten with new data. This is why you read about computer forensic teams, the FBI, and other law enforcement being able to recover data to solve crimes or incriminate individuals. Using software undelete tools, you can restore files that were accidentally or otherwise deleted. In more severe case, services such as Drive Savers are used to recover data that has been physically or electronically destroyed. 

Baring any of these extra efforts, you can use the procedures below to erase or destroy your data so the average individual won't be able to recover anything from your computer hard drive.

Using Wipe Utilities

In order to prevent data from being recovered, you should use data wiping software to completely erase the information to Department of Defense (DOD) standards. I recommend the following free tools to sanitize or wipe a hard drive of information:

Darik's Boot and Nuke - a program that can be booted from floppy or CD to completely erase a hard drive
Eraser by Heidi Computers Limited
Active@ KillDisk
If you plan on giving your computer away, selling it, or otherwise disposing of it, please destroy the data on it by using one of the above wiping utilities. 

Degaussing a Hard Drive

An extra step is to degauss the hard drive. Degaussing is a process whereby the magnetic media is erased using a reverse magnetic field to scramble the electronic data and make it unreadable. Unfortunately degaussing machines are rather expensive ($2000.00 or more) and are not realistic purchases for the average consumer. However, you can send your hard drive to a degaussing company like Garner Products or SEM and for a few dollars can have your hard drive completely degaussed and/or destroyed. If your data security is important enough, this is a wise step.

Physically Destroying a Hard Drive

Physically destroying a hard drive is by far the most effective method for the average person to ensure the safety of their data. However, please wear protective glasses and other gear if you decide to physically destroy a drive yourself. It can be a dangerous activity that I don't recommend to everyone. Also, as a precaution, wrap the hard drive in a towel so the parts don't fly off and do more damage.

Whether its smashing the hard drive with a sledgehammer, drilling holes into the drive, tearing the drive apart and destroying the platters, shredding the drive, or other methods your sensitive data will be safe. 

For the most security, I recommend doing as many of the above procedures (wiping the drive, degaussing it, and destroying it) as you can. If a drive is wiped, degaussed, and destroyed the chances of recovering the data is almost nil.

Conclusion

If a computer store, consultant, or other qualified computer tech tells you your hard drive is crashed and the data is unrecoverable, ask for them to return the original drive to you. This way you can physically destroy and dispose of the drive to your satisfaction and avoid situations like Mr. Bowen's where your data suddenly appears on someone else's computer screen.

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Thank you and please take a moment to rate as fixya. Thanks.

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