I uninstalled my previous installation of Backendless Standalone for Windows without any problems.
I rebooted the computer. I then started the Backendless Standalone installer. I think I figured out what the delay or infinite loop was in my previous attempts of installation. If I copy and paste the email address by right clicking in the email address to get the context menu, and then select he Paste option, the context menu doesn’t disaappear which causes the rest of the installation process to stall. If I copy and paste using only the keyboard, there is no delay during the installation.