Finally got replacement adapter from phony scam site, but a different model than what I'd ordered. This one looks to be the real deal though, and has so far not thrown any shit about being unrecognized by the machine, and overall appears to be better quality. As such, I've gone back to using my own computer rather than the one on loan from my girlfriend, and I have been suddenly reacquainted with all of its faults.
The screen is completely fucked. There's a loose connection somewhere, so on startup or a soft breeze, the entire screen turns into technicolor pinstripes. So far, the "solution" appears to be a lot of frustrated wiggling and a wad of tissue paper jammed into the screen frame to apply pressure to one of the connections. There's still some weird fuckery with things like the native resolution not actually being handled all that well, and I've noticed that playing SS13 has suddenly gotten about 10 shades darker compared to the other, older computer.
Also, because this is actually a super-fancy-dancy touchscreen computer (why), the touch controls will occasionally (and seemingly without provocation) go berserk and click EVERYTHING on the screen, despite the fact that my fingers are nowhere near it.
I've manually turned off the driver for the touchscreen multiple times. Originally this was just because I'd occasionally bump something on the screen and it was kinda irritating, now it's because the touchscreen has its random fits where it'll close 5 tabs and two windows while starting three new programs or links that I didn't want to click on (and where it's so busy calculating the bombardment of "touchscreen" signals, that it completely drops mouse support until the tantrum is done). Why is it that I've done this multiple times? Because every time the machine updates, Microsoft goes "oh, hey, there's an integrated driver that's been disabled! BETTER FIX THAT" and turns it on again.
I'm aware I should be searching for a better machine, and I'd like to. I just never find the energy to bring myself to actually do it and decide what the fuck I actually want and/or need from a computer. Because I'm invalid like that.
Also the 'd' key will oftentimes register a second press almost half a second after the one time I actually did press the key, so when I'm typing quickly I end up with badges of intelligence like "words.d"
Also also this computer is the one I colossally fucked up extracting a broken headphone jack from the audio port, so there's absolutely no sound to be had from it.