Mac wont start after avg download

Hello Carrie. I apologize for the inconvenience caused. Please click on the following link http://bit.ly/1EC2Cp1 and fill out your details, select as Mac OS then the name of AVG Program that you installed in your Mac and in description please completely explain about your issue and finally click on Email option. The AVG team will reply back to you via email with a resolution. Please contact us should you need any further assistance.

Hello Carrie. I apologize for the inconvenience caused. Please click on the following link http://bit.ly/1EC2Cp1 and fill out your details, select as Mac OS then the name of AVG Program that you installed in your Mac and in description please completely explain about your issue and finally click on Email option. The AVG team will reply back to you via email with a resolution. Please contact us should you need any further assistance.

I download avg anitvirus for mac book. It cleared 38 infected files. After I tried to restart my macbook it wouldn't complete start up. All I get is a load screen and after a min it shuts down again.