I tried to install the win 7 upgrade on top of my Vista OS The directions said to have an external HD I did not have one and tried to install anyway. Now, when I turn on the computer I get the choice of Vista or Win 7 !? Also, my Recovery disk of 15 GB is full. Because it is full I cannot load another program into the machine. How can I fix this? Vista was 32 bit, home ultimate. The Win 7 was an upgrade install of Home Premium.