BluestSoft　- DiskDeleter: deleting disk data software, DataUndeleter: recovering lost data software

About Deleting Data

Do you think that emptying the Recycle Bin will permanently delete files?

Do you think that formatting hard disk will permanently delete hard disk data?

Actually, neither erasing files by emptying the Recycle Bin nor formatting hard disk will destruct data permanently.

	Why aren’t they erased?

	For example, to erase a file on Windows by emptying Recycle Bin means just to put information of "ERASED" in the index area. Data itself remains in the data area without being erased. Unfortunately, the file can be easily recovered and viewed by data recovery software within a few minutes.

	So if you want to sell, donate, discard, or return your computer, you need to make sure to eliminate your confidential information such as:

•	ID and Password	•	Social security number
•	Financial Documents	•	Human resources data
•	Tax Records	•	Corporate Trade Secrets
•	Bank account	•	Customer database
•	Credit card numbers	•	And more

How to erase data permanently

To erase a file permanently, you need to overwrite data (for example, 0x00, 0xff, random value, etc) in its index and data areas. Normally, even if you simply overwrite zero (0x00) on a file once, the data cannot be recovered by any data recovery software. But unfortunately the data overwritten once or twice can be recovered by magnetization pattern analyzers such as Magnetic Force Microscopy (MFM). In general, to erase data completely, it is recommended to overwrite data at least three times.

	BluestSoft DiskDeleter supports DOD5220.22-M, which is the guideline published by the US Department of Defense for erasing magnetic media to guarantee that all data previously contained on that magnetic media is deleted permanently.

	DOD 5220.22-M overwrites data total three times, first by 0x00 once then its compliment value 0xff once, and finally random values once. After the final process is complete, the disk is read to verify data to make sure there is no lingering pattern.

	To protect your confidential information, BluestSoft DiskDeleter guarantees to permanently erase hard drive data on your computer with the following 6 methods, including DOD 5220.22-M.

	1.	Zero Write
	2.	Random Write
	3.	Random Random Zero
	4.	DOD 5220.22-M
	5.	NATO Standard
	6.	Peter Gutmann

	Why BluestSoft DiskDeleter?

	-	DiskDeleter is easy to use. Please check how easy it is.
	-	DiskDeleter is based on our unique BIOS (Basic Input Output System) technology, which is fast and reliable for accessing hard drives directly.
	-	You can get free technical supports on all of our software products both full version and demo.
	-	BluestSoft is a company of a professional team dedicated to creating solutions for computer securities.

	Choose DiskDeleter that fits your purpose of use

[Personal Use]

See Case Studies


	DiskDeleter Download version (including Floppy and CD version)

	-	Full delete methods including DOD 5220.22-M to protect your important data.
	-	Easy to use. Just download and click the program. (Windows2000 and XP)
	-	Use Floppy or CD version for any computers (Intel x86 based systems; Windows95/98/ME/2000/XP, OS/2, and Intel based Linux/Unix)
	-	$39.95 (including Floppy and CD version)

	DiskDeleter CD version

	-	Full delete methods including DOD 5220.22-M to protect your important data.
	-	Supports any computers (Intel x86 based systems; Windows95/98/ME/2000/XP, OS/2, and Intel based Linux/Unix)
	-	Good for a notebook computer which does not have a floppy device
	-	Need to take an extra effort to burn CD
	-	$29.95

	DiskDeleter Floppy version

	-	Full delete methods including DOD 5220.22-M to protect your important data.
	-	Supports any computers (Intel x86 based systems; Windows95/98/ME/2000/XP, OS/2, and Intel based Linux/Unix)
	-	Need to take a little extra effort to make a floppy
	-	$19.95

	DiskDeleter ZW version

	-	Weakest delete method but enough to protect your data from software recovery
	-	For any computers (Intel x86 based systems; Windows95/98/ME/2000/XP, OS/2, and Intel based Linux/Unix)
	-	To take an extra effort to burn CD
	-	$9.95

	License for Personal Use:

	If you purchase one copy of DiskDeleter, you can use it on multiple computer systems owned by you personally. For example, if you own three computers, you can use one copy of DiskDeleter for these three computers.

	* Please see BluestSoft End User License Agreement for more information.

[Enterprise Use]

See Case Studies


	DiskDeleter Download version (including Floppy and CD version)

	-	Full delete methods including DOD 5220.22-M to protect your company’s important data.
	-	Good for Client/Server environment. If DiskDeleter is stored in your company's server, it can be accessed (just double click) from any client computers to erase each of their own data.
	-	Easy to use. Just download and click the program.
	-	$39.95 (including Floppy and CD version) (Please ask our sales for Enterprise License or Site License)

	DiskDeleter CD version

	-	Full delete methods including DOD 5220.22-M to protect your company’s important data.
	-	Supports any computers (Intel x86 based systems; Windows95/98/ME/2000/XP, OS/2, and Intel based Linux/Unix)
	-	Good for a notebook computer which does not have a floppy device
	-	Need to take an extra effort to burn CD
	-	$29.95 (Please ask our sales for Enterprise License or Site License)

	DiskDeleter Floppy version

	-	Full delete methods including DOD 5220.22-M to protect your company’s important data.
	-	Supports any computers (Intel x86 based systems; Windows95/98/ME/2000/XP, OS/2, and Intel based Linux/Unix)
	-	Need to take an extra effort to make a floppy
	-	$19.95 (Please ask our sales for Enterprise License or Site License)

	License

	Volume License for Enterprise or Commercial Use: If DiskDeleter will be used in your company or for your commercial purpose; you will need to purchase the number of licenses you will use. Please contact our sales for more information.

	Site License for Internal Use: If you want to use unlimited number of DiskDeleter, Site License may be a good choice. Please contact our sales for more information.

	* Please see BluestSoft End User License Agreement for more information.