WinterSnowfall: Oh, sorry for throwing acronyms at you then :).
It "should" work, you are right, but DBAN (2.3.0) is known to be notoriously stubborn when it comes to cooperating with modern hardware because of its outdated codebase. Since it was acquired by a commercial entity, the focus has switched to developing a more advanced version of the tool, which is proprietary, without releasing any more updates for the GPL version. You could say it's pretty much abandoned at this point, since no one is actively maintaining it.
Well that's weird, because it seemed to me like it's the thing that everyone's using, but I guess I was wrong.
WinterSnowfall: Most Linux distributions these days, including popular ones like Ubuntu and Mint, offer live images (.iso) you can burn to a DVD or USB stick and then use to boot the OS. Live images will provide you with a working environment which you can test drive against your machine's hardware, for one, before actually installing anything, but also make for great utility/recovery tools.
Well I really don't need recovery or any of that - I simply need to erase the hard drive about 10 different ways, until there's nothing that anyone could possibly pull from it, and then reinstall Windows afterwards (so no, I can't simply
destroy the drive).
WinterSnowfall: Shred, which I've mentioned earlier, is a Linux command line utility for secure data erasing that I switched to after having similar problems with DBAN (which I've also used for many years prior to 2016). Due to the nature of POSIX systems (UNIX/LINUX), where essentially everything is represented as a file, you can use it to securely delete an actual file or more, a partition or an entire disk (including its partition table) depending on the provided target path. /dev/sdx (where x can be a,b,c etc) is the usual path to a serial device, like a hard drive or USB stick.
That sounds good, but does it really wipe and scrub it very well, or does it just set all of the data to 0? And you say you used DBAN all the way until 2016, but my computer was made in 2013, so it
should be good for that, unless you were using an older computer than that in 2016.
WinterSnowfall: If you're not familiar with Linux though, this whole thing can be quite a trip. I'm sure there are simpler software solutions you can use in Windows, but I'm not really familiar with what's out there. The only one I can remotely recommend is
Eraser, but it only operates on files and optionally the free space within partitions, so it can't wipe disks in their entirety.
Well I absolutely need to erase the whole hard drive with the operating system on it. I'm
vaguely familiar with Linux but it's been many years since I used it and I'm not really sure how to do much at all.
WinterSnowfall: P.S.: One last thing, as a word of warning: doing this on an SSD is pretty much useless and will only wear it out without guaranteeing the secure erase of your data. These kind of utilities are only useful for traditional mechanical hard drives.
Well I have a traditional drive, but out of curiosity, why doesn't it work on an SSD (you do mean solid state drive, right?). When I had first heard about them I was led to believe that they work almost like RAM, except that they persist when the computer is off. But RAM is incredibly easy to erase, just by changing the data, and there's no trace of what it may have been
before, so I would think that solid state would be the same way. Or do I entirely misunderstand what solid state is, and if so, how does it actually work, if you know?