I did a full virus scan. I also tried deleting the folders of McAfee and the TV Tuner software, and I deleted the tuner's drivers as well from \windows\system32\drivers.
I think something is wrong with the video settings. I am using my own monitor now rather than my friends. But I cannot get into safe mode. The computer does not get into the graphical screen, rather, it locks up after HIMEM tests extended memory. Normal mode gets me to a completely blank screen (no cursor). However, I can tell that I am in Windows because when the disk activity stops, I press ESC and suddenly the disk activity starts again heavily, meaning that I probably just bypassed the Windows Login prompt and now applications and desktop is loading. Also, Step-by-step mode loads the components properly.
Very strange for safe mode not to work. I believe this will probably need at least a reinstall over C:\Windows. The user profiles should be maintained this way.