How do I get rid of cuponarific

Dennis, For removal info have you 'googled' remove couponarific virus?..
No AV product is capable of providing you with 100% protection although AVG are always working 24/7.
Have a look @ these 2 articles…
[1] (https://support.avg.com/SupportArticleView?urlname=What-to-do-when-I-suspect-an-undetected-file-is-infected)                            
[2] (https://support.avg.com/SupportArticleView?urlname=Why-AVG-did-not-detect-a-virus)            
AVG would recommend to start with uninstalling all unknown/unused programs and browser addons.
AVG Guru

Will my AVG Full version get rid of couponarific virus

Dennis, For removal info have you 'googled' remove couponarific virus?..
No AV product is capable of providing you with 100% protection although AVG are always working 24/7.
Have a look @ these 2 articles…
[1] (https://support.avg.com/SupportArticleView?urlname=What-to-do-when-I-suspect-an-undetected-file-is-infected)                            
[2] (https://support.avg.com/SupportArticleView?urlname=Why-AVG-did-not-detect-a-virus)            
AVG would recommend to start with uninstalling all unknown/unused programs and browser addons.
AVG Guru