



The company had previously indicated that it would limit the number of beta testers. The software will support Windows XP with Service Pack 3, Windows Vista with Service Pack 1 or 2, and Windows 7 with Service Pack 1. You can download both versions in one shot or separately depending on whether you're running a 32-bit or 64-bit version of Windows. Microsoft is offering two editions of the Security Essentials beta-a 64-bit version called mseinstall-amd64fre-en-us.exe and a 32-bit version called mseinstall-x86fre-en-us.exe. And then clicking on that title finally takes you to the page where you can actually download the software. Clicking on the link to the download page (listed in Step 2 of the instructions) displays the title of the file-MSE Public Beta. You'll then see a page describing the features in the new beta along with the system requirements and installation instructions.
