I think astor's response is probably right (as usual), but there's more to it than that. Since you sound like you're asking out of curiosity and not irrational paranoia, there's a few things: for one, Windows can be configured to keep the swap file on any drive -- I generally keep mine on a different physical hard drive than the OS runs on, for instance (so loading a program and loading something from swap can both get the full I/O of the disk if it comes to it). Unless you play with the settings manually though, I think it'll be on the same drive as the OS installation is.Operating systems are massive beasts though, and there's a whole lot that they do. I mean a whole lot. File indexing for faster drive searches (which includes some kind of content indexing that I have no clue about, BTW) is just one thing. I don't know where that data is stored.The volume shadow copy service comes to mind -- I was never clear on exactly wtf that really does, but it sounds like it could have fragments scattered throughout drives. The Windows registry is actually stored in fragments of different files all over the place, but I should think that would be almost entirely on the boot partition or the one Windows is installed to.You call one your "game drive." That means you install programs directly to it? I have no idea if that means Windows keeps fragments on that drive. If it's formatted as NTFS though, there's data it stores in a normally non-accessible location on the disk (non-accessible from Windows that is). I don't know what that data is or how incriminating it could be, but it's there. Basically the problem is that almost nobody knows everything Windows is doing anymore -- including a lot of the guys who helped write the thing -- so there's almost always something to find if you dig deep enough. The idea behind physically damaging the drive is to make it absolutely impossible to recover.Nobody knows everything, and everyone makes mistakes: if you don't make your plans to be resilient to the little mistakes you're *going* to make, then they could easily get you fucked if you're selling. But you're not, so you personally would be a waste of time and money to do serious disk forensics "against." If they wanted to prove you use Silk Road though, I'm willing to bet someone they pay very well could get enough data from your system to testify that you do. I have no real idea how *I* would go about doing that, but it's what these people do, ya know.