AVG Folder opens every time I Start-up

Hello G,
We understand how something like this can really try your patience.
Could you please provide us the screenshot http://avgclick.me/getscreenshot of the issue? so that we can assist you better. Also please let us know whether you are using Windows XP Service Pack 1 or Windows XP Service Pack 2 or Windows XP Service Pack 3 in your pc.
Please feel free to contact us for any further assistance. Thank you.

EVERY time I start my computer a page automatically opens:

C:\Documents and Settings\user pc\Application Data\AVG

I am using XP.

Why does this happen?
How can I stop it?

Hello G,
We understand how something like this can really try your patience.
Could you please provide us the screenshot http://avgclick.me/getscreenshot of the issue? so that we can assist you better. Also please let us know whether you are using Windows XP Service Pack 1 or Windows XP Service Pack 2 or Windows XP Service Pack 3 in your pc.
Please feel free to contact us for any further assistance. Thank you.