Why does my Internet go down, every time I try to attach, or download an attachment?

[684]

I was trying to build a GoDaddy website, and they had me go in and do some things to my computer to get it to work. Now, when I try to attach, or download an attachment, thru Internet Explorer, or Google, my internet shuts off. Does not matter if I am on gmail, or Yahoo, either. My son did something last weekend, and it worked all week, and now it is doing it again.
Also, every time I open the internet, a box appears saying Google Chrome will not work completely, because it requires at least Windows XP, which I have, but it does not think so.
I have downloaded updates for Google and Internet Explorer, and it keeps telling me to update them, right after I do it.
Does anyone know what is going on? I would really appreciate some help.

When I wrote my question on the Post, when I clicked enter to add to my question, that shut my Internet down, also.

[PopEye]

Your computer is one sick puppy. I suggest you reinstall your operating system or put it to sleep.

[Mary Contrary]

Stop trying to work with Windows XP. Move to the 21st century as soon as possible.

[Jimmy]

May need to do a system restore to a time before you made the changes.