Malwarebytes can't find this virus

[OldSceptic]

Running MS Vista OS

I have a virus that sent spam to all my hotmail contacts. The spam shows one of several link that all contain the word "friends". The virus runs whenever I access my hotmail account.

I have Malwarebytes PRO installed with daily scans settings. A quick scan found nothing. My Windows task Manager list Malwarebytes PRO running. However, The Windows Security Center indicates That antivirus software in not found and Windows defender is turned off and it can't be turned on.

Any suggestions before I try to reinstall Malwarebytes from a flashdrive?

P.S.

I've attached a jpg file showing all processes in my Task Manager

[Firefox]

Hello and

A few things....

First off, it could be as simple as your hotmail account got hijacked and all you need to do is change its password.

Second, Malwarebytes is NOT an antivirus program, it is designed to work along with your antivirus software, so if you do not have any antivirus software on your computer you need to install one ASAP.

Lastly, If you would like to have an expert look over your logs to make sure your are not infected then follow the instructions below.....

If you think you are infected, here are the steps needed to get your computer cleaned....

Please read the following so that you can begin the cleaning process:

You have 3 Options that you can choose from as listed below:

[*]Option 1