I already moved the files, and when I was done I tried to boot back into Windows and it was broken. I booted into Ubuntu, mounted the Windows partition, and backed up my important files. Then I reinstalled Windows, but somehow my internal hard drive configured itself for RAID. I set it to AHCI after trying to install Windows twice without realizing the problem, and for some reason a bunch of drivers wouldn't work and I kept blue screening. I then set the hard drive to ATA and tried again, it gave me a little trouble with drivers at first, but at the moment it seems to be running perfectly.
I'd like to have a dual boot, but I'm waiting until after I've played Skyrim to do anything with this computer again because when I tried installing Ubuntu again after fixing Windows it gave me the same error as before. It said something about not being able to format the drive mounted at some location. I'll write it down next time so I can tell you what it actually said. This time I used a cd to install it, after redownloading the iso file, and burned it at 10x, the lowest available speed.