A free, single floppy disk that erases your old harddisk.
When selling your old computer you rarely want the buyer to get access to your old data. Even if you format your harddisk it is often possible to recover data. Most erasure utilities will only erase the directory information, so the actual data is still on the harddisk.
To erase the harddisk you can just overwrite the whole harddisk with zeroes. But even this is not enough: With some special hardware it is possible to determine what was written before.
Secure Harddisk Eraser implements these 35 or 3 passes on a single floppy. Just boot from the floppy, wait 60 seconds and the harddisk will start to erase. When the erasure is done the computer will beep every second. This makes it possible to erase computers without having a monitor attached. To make sure the erasure is successful you should try rebooting the machine.
How to get started
High security - not top security
Secure Harddisk Eraser gives a high security for non-recovery of the data. It does, however, not guarantee non-recovery. So if your data is top secret the best solution is to:
Future additionsThe following features have been requested:
Please contact us if you are interested in paying for having Secure Harddisk Eraser expanded with these or other features.
It has been reported that if you erase large harddisks using a computer fitted with an old BIOS that cannot handle large harddisks then the result will be only partial erasure. This bug has not been confirmed. You are in this category if you use a special driver (e.g. Disk Manager) to access your drive. Workaround: Move the large harddisk to a computer with a newer BIOS and erase the harddisk there (Remember to take out the original harddisk).
Secure Harddisk Eraser only handles IDE disks. The trouble with SCSI disks are the different drivers for different SCSI cards.
The 35-pass version does not permute the deterministic passes.
You can report other bugs to me.
LicenseSecure Harddisk Eraser is released under GPL. It is based on Linux Router Project. You can get the source code by contacting the author.
See alsoSecure Harddisk Eraser is not the only way to erase a harddisk securely. Some of the competitors can print a report of erasing the harddisk.