Windows 7 Does Not Recognize Administrator

I did a quick search on this site on "Administrator not reconized" and found the only threads mentioning this problem have both been closed. My problem is that in trying to download the entire HP driver/software disc for my hp printer psc 1350 series, I was not able to download the entire software, because I did not have Administrator's rights, etc, even though I was the only Administrator (and sole user of this computer at that time). I did some research online and followed one suggestion that I followed, which was to change the setting by going to Start, typing 'cmd' in search field, and typing in 'net user administrator /active:yes.' This created another "Administrator" user, which I am now finding quite useless, since many of my programs have already been downloaded on my first "Administrator" status. I need to know how to remove the last one I created (Administrator), if possible. As it stands right now, the one I had before is the only one with the option to delete. (Ugh!) In any case, even having the second Administrator user status, will not allow me to download the above mentioned software completely. So, I went full circle with the same problem, with no solution.

1) Remove the second Administrator user, and 2) how to get Windows 7 to allow me to download the above mentioned. BTW, I have already tried right-clicking the disc drive (setup file) and clicked "Run as Administrator" - all to no avail. Nothing seems to work.