Security Essentials

Protect your data - and your business - with Microsoft Security Essentials

Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.

Microsoft Security Essentials is a free download from Microsoft that is simple to install, easy to use, and always kept up to date so you can be assured your PC is protected by the latest technology. It’s easy to tell if your PC is secure - when you’re green, you’re good. It’s that simple.

Microsoft Security Essentials runs quietly and efficiently in the background so that you are free to use your Windows-based PC the way you want - without interruptions or long computer wait times.

• Download: Business IT security for non-techies - Guidance on how to protect your data and your business

• Security that you can trust

  A security problem can be costly. Microsoft Security Essentials provides strong protection against viruses, malware, spyware and phishing attacks and helps keep your computers up and running. Feel safer knowing that your PCs are being protected by the same core technology that is the basis for Microsoft's other award-winning security products and that is backed by Microsoft's world-class Security Response Centre.

• Easy to get and easy to use

  Microsoft Security Essentials is a no-cost download with simple setup and an easy-to-use interface. It has no expiration or trial period and is automatically updated to help ensure that the software always contains the latest protection advancements.

• Quiet protection without interruption

  You need to use your PC without interruption, yet you also need protection from security threats. Microsoft Security Essentials is designed to provide fast, real-time protection quietly and efficiently in the background. You can use your PC the way you want-without worrying about interruptions, pop-ups, or poor system performance. Go online with greater confidence, knowing you've helped to protect your data, your business and your PC.