After downloading the PC Login Now software, you'll need to burn the ISO file to a CD.
Burning an ISO file to a CD is a little different than burning ordinary files or music to a CD. If you've never burned an ISO file to a disc before, I recommend following the instructions I linked to in the last sentence. It's not a difficult process but there are very important things that you need to be aware of.
Note: If the ISO file is not burned properly, PC Login Now may not work at all.
After burning the PC Login Now ISO file to a CD, go to the computer that you're trying to gain access to and continue to the next step.
