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If McAfee Security Suite has an anti spyware component then you will not need windows defender
norton sucks. Use avast! antivirus 4.8
Not anymore Microsoft offer a free internet security suite called "Microsoft Security Essentials" download from here: (Link moved to related links section)No.
Microsoft bundles Windows Defender with most of its operating systems, which is a good security suite.
Neatgear firewalls are known for being great security tools for computers. However, other firewall options include Windows Defender, Norton Security Suite, and many others.
With the launch of the new Windows smartphone, they also offer the Windows Mobile Security suite to customers available standard with some phones or as an upgrade package option.
The expectations that come with Enterprise Suite is that you will get a virus from this program, instead of protecting your computer like it is said to do. Enterprise Suites is just a copy of Windows Enterprise Defender, only it will attack your computer.
Many companies can offer internet security but there are some standouts. Some of them are Vipre Antivirus, Norton, Symantec and Bit Defender. They have been given the gold standard review.
Microsoft offers some built-in virus protection with its Windows operating system. Microsoft Security Essentials is a security suite that includes, among other products, Windows Defender, a real-time malware protection and antivirus software product.
ESET has already won an award for Windows 7.http://www.reuters.com/article/pressRelease/idUS184675+22-Oct-2009+PRN20091022
Comodo Security suite it's great and free
Nod32