Simply run with Microsoft Security Essentials (MSE)
, which continues to prove itself as a great realtime anti-malware solution so you can get rid of Norton and McAfee. And note since MSE scans for spyware as well as viruses and other vermin, it automatically replaces, and disables Windows Defender upon installation.
I have been using Windows Firewall, MSE, and IE8 since Windows 7 went final on all my systems - with zero
problems - and NONE of the bloat (consuming CPU, RAM, and disk resources) that is associated with Symantec and McAfee.