Don’t you know how to resolve the AOL Desktop Gold error code 100 from your system? If you don’t know, then you don’t have to worry as you can first try to disable all the antivirus and firewall present in your system. Then you can try scanning your system for removing all viruses that are there in it, or you can try to change the start of the Windows Update Service. You can try to download AOL Desktop Gold on your system and then install it. However, make sure the desktop software that you are using is meeting the system requirement.