When you give your computer to someone else, you're giving your data to them as well. Erasing
the data can be done in three ways. Each has its advantages and disadvantages.
1. You can simply delete the files and empty the Recycling Bin. There's two disadvantages:
You have to know where all your data is stored. Microsoft Office places all data files in
the My Documents folder by default. Other products like WordPerfect store data files elsewhere.
Unless you know where all the data files are stored, you might miss something.
It's very easy for anyone with a little knowledge and easily obtainable software to
retrieve all your files. When you delete a file, it doesn't delete the file. It only
deletes the pointer to the file. If you think of having an index to all your files, deleting a
file only deletes the entry in the index. Most people won't go to the effort to get to old
data. If you don't have personal files on your computer, or at least nothing that really
matters, this method should be sufficient.
2. You can reformat the disk.
With Windows 95/98, click on the Start button, select Programs, and then MS-DOS Prompt. In
the resulting window, type "format c:" (without the quotes) and press the Enter key.
It will warn you that continuing will erase all your data. Actually it will erase everything on
the hard drive.
It's very easy for anyone with a little knowledge and easily obtainable software to
retrieve all your files. When you delete a file, it doesn't delete the file. It only
deletes the pointer to the file. If you think of having an index to all your files, deleting a
file only deletes the entry in the index. Most people won't go to the effort to get to old
data. If you don't have personal files on your computer, or at least nothing that really
matters, this method should be sufficient.
Naturally, there are disadvantages:
If you're planning on someone else using this computer, it must have Windows and all
other applications reloaded. If you've lost the Windows CD that came with your computer,
the new user will have to purchase a new copy of Windows. Invoices for other applications like
Microsoft Office are also needed before they can be reloaded.
Formatting the disk is still not foolproof. With the right software and someone that knows
what they're doing, the data is still readable. However, this is far beyond a normal user
and this method should be more than sufficient for almost everyone.
3. You can overwrite all data on the disk. This requires special software. If you have especially
sensitive data like student records or executive correspondence, you need to contact the Help Desk at
262-3536 to open a work order.
Note: If it's a home computer and you have data you don't want anyone to see, you might
consider removing the hard drive and destroying it or putting it into your new computer as a second
drive. This makes it unnecessary to transfer the old files to the new computer. However, whoever gets
your old computer will have to buy a new hard drive, but they're relatively inexpensive. The new
owner will also need your CD to install Windows onto the new hard drive.