Pc clean up install

Hello All:  I Am Installing Avg PC/clean up on Son's Computer And Install Error # 0xe001f921 Keeps Coming up During install . Any Idea's?

Hello Todd,

I understand that you get error while installing AVG. Please do not worry, this error indicates that an installation is already in progress. Please restart your computer and then initiate the installation of AVG. If the issue persists, please check if you have older version of AVG PC TuneUp installed in your computer control panel, if there is any, remove the same and then try to install AVG PC TuneUp. If you face any difficulties, feel free to contact us.