Error: 0xC007057E

I currently have AVG Internet security 2013 on my computer. I paid to upgrade to AVG Pro "AVG Zen". When i try to install it gives me the Error code 0xC007057E.
AVGMSI_Error1406
Error code 0xC007057E
Error Message: Could not write calue AvgUi to key
\SOFTWARE\Microsoft\Windows\CurrentVersion\Run.
System erroe. Verify that you have sufficient access to that key, or contact your support personnel.
Context: StandardAction

I have already tried running AVG Reset Access with no success

Hello Scott, we apologize for the inconvenience caused. We would suggest you to first uninstall your older version of AVG then install the AVG Zen. For uninstalling please follow the instructions mentioned in this link http://bit.ly/1CLzoaJ . Please feel free to contact us should you need any further assistance.

Scott, Have a look @ this article (http://avgclick.me/UpgradeToZen).
AVG Guru

Scott, Have a look @ this article (http://avgclick.me/UpgradeToZen).
AVG Guru