Thanks for your response - do you mean to do a fresh install of Windows? I'll have to do what I can to back up what I haven't already before I attempt that. I have a slower HDD that I use purely for storage; I will attempt to figure out how to boot windows from that.
Also, if it is helpful to know: The computer works fine in Safe Mode. When I do a normal boot, however, it is pretty much inoperable for all intents and purposes. I couldn't even manually shut down the computer down once it had started, the mouse movement was so unpredictable