I am trying to put a Western Digital 500 GB HDD into my Dell Inspiron 1011 (which has a 120 GB HDD with Ubuntu 12.04 LTS). I was able to exchange the hard drives, and my laptop was able to recognize the HDD, but there was another problem. After the Dell boot screen, it says: Windows is loading files. Then the screen goes black, and the process begins again. I think if I had a Windows 7 boot disc I could solve this. Is there another way for me to do this successfully?