What are the steps you need to take when you put an old HD in a new computer? I just did this. Every time it makes it to the windows boot screen then restarts. I have a bunch of old engineering software that is not compatible with the newer versions of windows. I figured this out after I bought a new computer and tried to add the software to a newer version of windows. So I figured I could just swap the HD's. This does not seem to be working either. Is there some way to set the new HD as a master and the old drive as a slave and boot that way maybe?