Uh, I already ran ComboFix before you made that edit, sorry. It hasn't solved the problem but at least I was able to install the Home Recovery Console. From what I can tell it hasn't removed any files this time.
I can't find a boot.ini within the C: drive. There's only a boot.bak file now. What should I do now? Should I post the log (the forum's character restrictions prevented me from adding it to this post) and then run that fixes.bat file you just posted?