Uninstall Norton to start with
Can you access any secure sites at all (eg online banking etc)?

If not, try the following:

You cannot get into hotmail and yahoo email accounts.
Cannot view secure web sites
Cannot get into pay pal
Cannot do a windows update
Cannot get into bank web sites
To resolve this problems, these steps to reset a dll file required to view secure web sites.

Click Start.
Click Run.
Type regsvr32 softpub.dll
Click OK. A pop-up should display with the message Dll Register Server in softpub.dll Succeeded.
Click OK