MSE is a small-footprint program ideal for computers that lack processing power or broadband Internet connections, such as netbooks. MSE is available as standalone 32-bit and 64-bit downloads for Windows XP, Windows Vista, and Windows 7. It's very easy to install Security Essentials using it is even easier than one might expect.
Updates and upgrades are automatic, so there's no need to worry about having the latest protection. It's easy to tell if you're protected – when the Security Essentials icon is green, your status is good. It's as simple as that.
Microsoft announced Morro on November 18, 2008. It marked a change in Microsoft's consumer antivirus marketing strategy. Instead of offering a subscription antivirus with a host of other tools — parental controls, photo backup, and a firewall, Morro would be free for all genuine installations of Windows and simply offer protection against malware. Microsoft Forefront will be offered alongside Morro, with central management tools not present in Morro.
While OneCare offered a Managed Firewall, PC Performance Tuning, Data Backup and Restore, Multi-PC Management, and Printer Sharing, MSE is really closer to Forefront Client Security, Microsoft's antivirus product for the enterprise.
MSE is a basic security suite designed for consumers but based on the Forefront Client Security desktop agent, solely providing malware detection and removal, but lacking Forefront Client Security's centralized management features. It includes the same antimalware engine (dubbed "Microsoft Malware Protection Engine", or MSMPENG for short), and virus definitions that all other Microsoft desktop antimalware products share, including Forefront Client Security, Windows Live OneCare, and Windows Defender (Defender excludes the antivirus definitions which are separate from the antispyware definitions). Before installation, MSE checks for a validated copy of Windows. No registration or personal information is required. The program will disable Windows Defender, as it provides protection against malware, not limited to spyware and adware.
Updates are published 3 times a day to Microsoft
Download : Microsoft Security Essentials 2.0.375.0 Beta - x64
Before you download:
Installing / uninstalling software can leave your registry
fragmented with obsolete,corrupt and harmful files.