想要出售旧电脑并想在出售前将硬盘擦干净？无论您的原因是什么，有很多程序可以帮助您不仅擦除硬盘驱动器上的数据，而且以一种永远无法恢复的方式擦除它。如果您有很多敏感信息，强烈建议您安全擦除硬盘驱动器。
安全擦除基本上执行低级格式化，以便用 0 覆盖整个磁盘。其他软件会在磁盘上多次写入垃圾数据，这样之前的内容就没有踪迹了。无论哪种方式，没有人能够从硬盘驱动器中获取原始数据，因为它会完全消失。
在这篇文章中，我将提到五个相当流行的程序，您可以使用它们来真正正确地擦除硬盘。有这么多好的免费程序，真的没有必要花任何钱来做像擦硬盘这样的事情。使用免费软件几乎可以得到相同的结果。
DBan（达里克的靴子和核弹）
http://www.dban.org/
这可能是最流行的程序，基本上是一个独立的启动盘。使用CDBurnerXP(CDBurnerXP)或任何您喜欢的刻录程序创建可引导 CD ，并在重新启动计算机后出现提示时引导至 CD。
您可以选择不同的擦拭方法，包括Gutmann Wipe、Department of Defense Short and Medium等。我已经多次使用这个程序，发现它可以很好地擦除许多不同类型硬盘上的数据。如果由于某种原因DBan不适合您，您可以尝试下面提到的其他程序。
杀盘
http://www.killdisk.com/
KillDisk有两种版本：免费和专业(Professional)。专业版在选项方面肯定比DBan好，但花 40 美元或 50 美元不值得。免费版只有一种方法可以删除硬盘上的数据（使用一次性零擦除），但对于像样的硬盘擦除来说仍然足够好。绝对 DBan(Definitely DBan)更好，因为您可以使用DoD 5220.22-M 协议。
如果您确实购买了该程序，那么您有 17 种选择来删除您的数据：
您可以直接在Windows(Windows)中使用该程序，通过DOS或使用可启动媒体，这样您就可以擦除任何运行Windows、Linux、OS X等的磁盘。如果您需要擦除大量磁盘，这可能是值得的货币投资，否则你对免费版本很好。
磁盘擦除
http://www.diskwipe.org/
另一个不错的免费软件应用程序是Disk Wipe。唯一的缺点是它是一个Windows应用程序，因此您必须从现有的操作系统中运行它，而上面提到的其他两个可以使用 CD 或软盘启动。而且由于它是一个Windows应用程序，它实际上只能擦除Windows格式的硬盘驱动器（NTFS、FAT32、FAT等）。
但是，如果这对您来说不是问题，那么该程序很棒！它是便携式的，不需要任何安装，因此您可以将它放在U(USB)盘上随身携带，或者直接通过电子邮件发送给自己。它可以擦除硬盘驱动器、记忆棒、SD卡等。
它还支持DoD 5220-22.M、US Army和Peter Guttman等高级算法。
橡皮
http://eraser.heidi.ie/
另一个类似于Disk Wipe的程序是Eraser。该软件是开源的，并且会定期更新。最新版本支持Windows 7 和Windows Server 2008。同样(Again)，缺点是它只支持Windows操作系统，并且只能擦除支持Windows的驱动器上的数据。
Eraser不支持与上述其他程序一样多的高级算法，因此如果您确实需要安全地擦除硬盘驱动器，则它不是最佳选择。这是一个免费选项并且可以完成这项工作，但使用此程序存在更多风险。
硬盘低级格式化工具
http://hddguru.com/software/HDD-LLF-Low-Level-Format-Tool/
这个程序是免费的，但它有一个速度上限，大约是每小时 180GB。如果您花费高达 3 美元，您可以获得没有任何速度上限的程序。它支持SATA、IDE、SCSI、SAS、USB和Firewire驱动器，这很好。
同样，就像前面提到的两个一样，它只支持Windows操作系统，所以如果你有一个来自不同操作系统的硬盘，你必须将它插入你正在使用的Windows PC。
总体而言，您最好的选择是DBan和KillDisk，它们可以真正以最高级别的安全性擦除几乎所有硬盘驱动器。如果这些对您不起作用或成本太高，您可以尝试提到的其他三个程序中的任何一个。
是否有用于安全擦除数据的程序？如果是这样，请在此处发表评论并告诉我们。享受！
5 Free Programs to Completely Wipe a Hard Drive
Looking to sell an old computer and want to wipe the hard drive clean before you ѕell it? Whatever your reaѕon may be, there are lots of progrаms out there that сan help you to not only еrase the data on a hard drive, but еrasе it in such a waу that it can never be recovered again. If you have a lot of sensitivе information, perform a secure wіpe of your hard drive is highly recommended.
A secure wipe basically performs a low-level format so that the entire disk is overwritten with 0’s. Other software will write junk data multiple times over the disk so that there is no trace of what was there before. Either way, no one is going to be able to get the original data off the hard drive because it’ll be completely gone.
In this post, I’ll mention five fairly popular programs that you can use to really erase a hard disk properly. There are so many good free programs, that it’s really not necessary to spend any money on doing something like wiping a hard drive. You’ll pretty much get the same results using freeware.
DBan (Darik’s Boot and Nuke)
http://www.dban.org/
This is probably the most popular program and is basically a self-contained boot disk. Create a bootable CD using CDBurnerXP or whatever burning program you like and boot to the CD when prompted after restarting your computer.
You can choose from different wipe methods including Gutmann Wipe, Department of Defense Short and Medium and others. I’ve used this program several times and have found that it does an excellent job erasing data on many different types of hard drives. If, for some reason, DBan does not work for you, you can try out the other programs mentioned below.
KillDisk
http://www.killdisk.com/
KillDisk comes in two flavors: Free and Professional. The professional version is definitely better than DBan in terms of options, but it’s not worth shelling out $40 or $50. The free version only has one way to delete the data on a hard drive (erasing with one-pass zeroes), but it’s still good enough for a decent hard drive wipe. Definitely DBan is better since you can use the DoD 5220.22-M protocol.
If you do purchase the program, then you have a great set of 17 choices for deleting your data:
You can use the program from within Windows directly, via DOS or use bootable media so you can wipe any disk whether it was running Windows, Linux, OS X, etc. If you need to erase a large number of disks, it might be worth the monetary investment, otherwise you’re good with the free version.
Disk Wipe
http://www.diskwipe.org/
Another good freeware app is Disk Wipe. The only downside is that it is a Windows app, so you have to run it from within an already existing operating system, whereas the other two mentioned above can be booted to using a CD or floppy disk. And since it’s a Windows app, it can really only erase hard drives that are Windows formatted (NTFS, FAT32, FAT, etc).
However, if that is not a problem for you, then the program is great! It’s portable and doesn’t require any installation, so you can carry it around on a USB stick or just email it to yourself. It can wipe hard drives, memory sticks, SD cards, etc.
It also supports the advanced algorithms like DoD 5220-22.M, US Army, and Peter Guttman.
Eraser
http://eraser.heidi.ie/
Another program that is similar to Disk Wipe is Eraser. The software is open-source and is routinely updated. The latest version supports Windows 7 and Windows Server 2008. Again, the downside is that it only supports the Windows operating system and can only erase the data on drives that support Windows.
Eraser does not support as many advanced algorithms as the other programs mentioned above and is therefore not the best option if you really need to securely erase your hard drive. It’s a free option and does the job, but there is more risk using this program.
HDD Low Level Format Tool
http://hddguru.com/software/HDD-LLF-Low-Level-Format-Tool/
This program is free, but has a speed cap on it, which is around 180GB per hour. If you spend a whopping $3, you can get the program without any speed cap. It supports SATA, IDE, SCSI, SAS, USB and Firewire drives, which is nice.
Again, like the last two mentioned, it only supports the Windows operating system, so if you have a hard drive from a different operating system, you’ll have to plug it into the Windows PC you are using.
Overall, your best options are DBan and KillDisk for really getting just about any hard drive wiped with the highest level of security. If those don’t work for you or the cost is too much, you can try any of the other three programs mentioned.
Is there a program that you use to wipe data securely? If so, post a comment here and let us know. Enjoy!
