Infinite Download Loop for HP Printer Software

I just upgraded to Windows 8.1 and the printer software is being wonky. I used the Install Wizard since the CD that came with the printer (HP Photosmart C4750) was only giving the "Exit" option and no button for "Install." The Install Wizard gave the "Install" and "Readme" buttons, but after clicking "Install," it would return back to the Install Wizard and begin downloading the SAME THING that it was downloading earlier. When the download finished, it brought up the same "Install" and "Readme." Rinse and repeat... Over and over again.

What the heck is wrong? Also, after doing this, the printer works fine, but the scanner can't even be detected. And my mom is having the same problem with the wireless laptop, except she can't even get wireless printing functional even though the printer is detected.

Come on HP. I've seen a few of these posts go completely unanswered. Help me out here.