Annoying reminders for avg stuff after starting the computer

Can anyone help me stopping those reminders that appear every time after turning on my computer. To do with avg programs they want me to get.

Hello Peter.
We are sorry to hear about the inconvenience caused. Could you please let us know if any trial version of AVG installed on your PC that might have expired and popping up? Please check it and uninstall it to stop the pop ups. Thank you.

Hello Peter.
We are sorry to hear about the inconvenience caused. Could you please let us know if any trial version of AVG installed on your PC that might have expired and popping up? Please check it and uninstall it to stop the pop ups. Thank you.