And you have the newest 2013-12-21 version of the software. There had been some issues and a new one was released today that fixed them. Other than that I'm at a loss.

First download and install .net framework 4.5 or above (Download Link) Now download and install ARC 2013.12.21.00

I did all that and nada

Expand on "nada". What happens? Does it still tell you that you need .net 4.5? Is a different error showing?

:D I downloaded and installed NET .Started up ARC and downloaded the new version and get the same error. See the jpg I uploaded. Says I need to be admin but I am. I might try and call Microsoft on this, But at least the old ARC is runnable after I did a restore back to when it was running.

stress

I doubt Microsoft will help you.

Have you disabled your anti virus while trying to install? Is anything else running that may cause problems? Have you checked the setting in user account control to make sure you have permission to install anything?

Have you been uninstalling previous versions of ezb before updating? And have you been rebooting after uninstall? Although those things aren't always necessary it's still a good idea to do them. Rebooting can be especially important when upgrading your .net installation.

*confused I have admin privileges. Will try shutting off virus software. I have removed earlier downloads before trying to get the the next one. Your right Microsoft was no help. You guys are the best.