Norton did not uninstall with tool

My friend brought over her computer that was running slow.

It's a security nightmare.

4 versions of Norton antivirus, that she thought she had removed.
1 mcAffee antivirus.
Windows firewall
no malware remover
she was using the administrator account
There were no passwords to anything.
Tons of Malware and viruses


Current status:

The Good:
I got all the malware and viruses off.
Got McAffee off.
Got avast on.
Got PC firewall on.
Got thee versions of Norton off with the tool
Turned off Guest account
put passwords on all other accounts


The bad:

I have programs that refuse to "stay dead."
Still have one Norton the tool will not remove. Do not know which version.
I am most concerned about Norton because her yahoo mail says it is still
scanning with it. I don't believe it could still be protecting her.
She gets lots of attachments that she opens in her email.

Is it hopeless now. Do I need to reinstall? :confused

The drive is partitioned and it says that the D drive is a backup.
If it is a backup of current stuff I don't want to even touch it.
How can I tell if it would help me?

The computer is a HP Pavilion Media Center dv5163d Notebook PC.

 

Different Norton products listed for removal:


http://service1.symantec.com/Support/tsgeninfo.nsf/docid/2005033108162039