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Is Windows Defender part of the Operating System for Windows 7 Professional 64-bit?

Experts,

Our company just purchased a new desktop computer running the Windows 7 Professional 64-bit operating system.  I was wondering if Microsoft's Windows Defender is part of the operating system?  The new computer does not have an anti-virus program installed, so I'm hesitant to obtain Internet access without some kind of protection.  If Windows Defender is NOT part of the operating system, then how can it be safely installed?  

PS.  Our company has purchased an anti-virus program for the computer, but it will not be available for another two weeks (red tape issue).  Until then, I will need Internet access to activate the Office software and get it configured for the user's needs.

Your thoughts?
fw
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forwiw2day
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forwiw2day
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2 Solutions
 
aadihCommented:
Microsoft Security Essentials (MSE) is part of Windows 7.
Windows Defender (WD) is part of Windows 8/8.1.

Turn on MSE and worry not.
[WD turns itself on, and off when another security product is installed.]
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Brad GrouxCommented:
Windows Defender is part of the operating system. However, on Windows 7 you can also download Microsoft Security Essentials which operates more like a traditional anti-virus program. The download is free.

http://www.microsoft.com/en-us/download/details.aspx?id=5201
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Shaun HillCommented:
To be more specific Windows Defender (Yes comes with Windows 7) is only really anti-spyware.  It will not protect against virus as well.  Microsoft Security Essentials does it all and I believe disables Windows Defender when it installs.

Security Essentials is a free download:
http://windows.microsoft.com/en-us/windows/security-essentials-download
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John HurstBusiness Consultant (Owner)Commented:
Users at companies are particularly prone to clicking on dodgy links and wrecking their machines. The answers above about MSE are largely correct, but I recommend top grade, paid, commercial anti virus for company machines.

And in a corporate environment, MSE free cannot be used. You need Microsoft Forefront which is a paid product.
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aadihCommented:
John Hurst's advice is the best for your circumstances.  And you are on the road to that aim, as you said.  Meanwhile do the best you could by using a workable free alternative.

[Note: MSE is free for small businesses with less than 10 computers.]
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forwiw2dayAuthor Commented:
Experts,

Thanks for the clarification, as I thought Windows Defender was the anti-virus/spam solution.

How do I turn on MSE on this computer if it's part of the operating system? (New to Windows 7 operating system).  

Thanks,
fw
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John HurstBusiness Consultant (Owner)Commented:
To get Security Essentials for Windows 7 from Microsoft, go to the link below and click on the green link to get Security Essentials for Windows 7.

http://windows.microsoft.com/en-CA/windows/security-essentials-download

I hope that helps.
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forwiw2dayAuthor Commented:
Thanks Experts!
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