Free tune up error message 0x0641

Hello Beth,
We regret for the inconvenience caused. Could you please confirm whether it is the first time you are trying to install the trial version of the AVG PC TuneUp? If so please follow the instructions on the article http://support.avg.com/SupportArticleView?urlname=Issues-with-AVG-PC-TuneUp-installation and check whether it resolves the issue.
Thank you.

Hello Beth,
We regret for the inconvenience caused. Could you please confirm whether it is the first time you are trying to install the trial version of the AVG PC TuneUp? If so please follow the instructions on the article http://support.avg.com/SupportArticleView?urlname=Issues-with-AVG-PC-TuneUp-installation and check whether it resolves the issue.
Thank you.

I keep getting an error message what am I doing wrong?