Internet explorer cannot display this webpage?

I already donloaded mozilla firefox and it does nothing and norton security, I went to go onto the website to download anti spyware and when i click on the page it comes up "internet explorer cannot display this web page" 

The computer its self it working quickly and fine, i dont think there is a virus.

I think somewhere along the line ive updated the privacy setting to much or something so it wont show wites which download thins because i can't download MSN either or get music from MP3Skull.

My sister uses the same wireless and hers is all working fine.

Hi,

can you please tell us the exact name and version of your Norton product?
1. Open the main window
2. Click on Help & Support -> About menu
3. On the About window find the version number (it will look like this: 19.1.1.3)

Thanks!