Vista Security Center Missing

THanks for taking the time to read this !!

Ok I need some help here. I just moved and have a new service provider. Not that this has anything to do with my issue but.

Yesterday I went to download a file in my email account and this is what happened:

I get the typical Norton Antivirus message "No Viruses detected" So I click download and I get this yellow pop up box a the bottom of the screen and it says " Do you want to open or save the document (instert document name) from ne1-attach.ymail.com? with an Open , Save and Cancel button.

I click Open or Save either one and I get a message that says : (Document Name).xls contained a virus and was deleted.

So this prompted me to go to my security center and what did I see. Security Center is turned off and when I try to turn it on I get and error message that says:

"THE SECURITY CENTER SERVICE CANNOT BE STARTED"

I am also unable to display any firewall settings. So I went to my services and Security Center is not there.

So I have since determined that I cannot download anything without getting an error message that says that whatever I am trying to download has a virus and has been deleted.

For instance when I try and download anything including pdf files and I get a message that says:

xxxxxxx.pdf contained a virus and was deleted.

Any help please !! Thank you so much in advance !

I would first try the fixit from near the bottom of this page.

Sounds like the service may be missing from the registry.

Error message:

In addition to the above
Download and try to run a scan with malwarebytes.
if that does not work
Go back to a time that it worked with system restore.