dragon_setup.exe virus popup

Hello,

Last 2 days i see avast popup with messeage about ‘‘dragon_setup.exe’’ virus, i remove comodo dragon from my pc,
why this happend and how to fix this ?
this is comodo problem ?
this is dangerous ?

http://s3.postimg.org/eu816xnkz/avast.png

i can remove this or leave ?

Thanks.