Error Code 5 Access Denied
You will need administrative rights to the CostGuard folder in order for CostGuard to update. This is a Windows error. If you can’t get admin rights here is the work around:
Download the CostGuard update but save it to your desktop
Version 3.x update
You will only need to do this once when you download the update. The next time you access CostGuard you can click on the icon and run it as a regular user.