So I have no idea what has happened, but apparently Chrome stopped working and instead opened IE everytime. People said it was a malware, which may be a problem. I think it is mainly the problem with downloading some programs. Anways, when I turn on my computer, it shows the usual but it didn't even show the Windows XP logo with the blue bar loading thing below it. It just turned all black, and didn't go anywhere. Now, I tried your steps of repairing this, but everything went well untill it made me restart the computer, and went to the installing windows part. I thought it would be just like when I first downloaded XP, however it gave an error saying:
An error has been encountered that prevents Setup from continuing. One of the components that Windows needs to continue setup could not be installed.
then I pressed okay and it showed me so many more fatal errors. I have no idea what to do now, and I thought of moving my harddrive to another computer to transfer the data/files then to cleanly reinstall Windows XP again. What should I do?