Microsoft did invited some testers to join Microsoft Security Essentials beta program few days back, now they made available MSE 4 Beta for testing via connect site which you can download. It seems Microsoft planning to jump  to version number 4 from 2 instead of releasing MSE 3, don’t know why?  yep the beta now offering is MSE 4.

Microsoft Security Essentials

What’s new in Microsoft Security Essentials 4 Beta

  • Enhanced protection through automatic malware remediation: The Beta program will clean highly impacting malware infections automatically, with no required user interaction.
  • Enhanced performance: The Beta includes many performance improvements to make sure your PC performance isn’t compromised.
  • Simplified UI – Simplified UI makes Microsoft Security Essentials Beta easier to use.
  • New and improved protection engine: The updated engine offers enhanced detection with cleanup capabilities and better performance.

Download  MSE 4 Beta