Windows Defender (Beta 2) is the renamed ( and is the final name) second beta release of Microsoft A...

More from the biggest Microsoft launch in ten years. Kodak, BigPond Movies and Sanity Music partnerships announced and explored in detail.

Will a beefed-up firewall, User Account Control and disk encryption make Vista a safer choice than XP?

Ineffective blocking capabilities in Windows Defender, slow definition updates and weak antivirus.

Update for Windows Defender among 20 patches in monthly update.

PreviewA good attempt at all-in-one system security, fully integrated into the OS.

Users of pirated Vista copies limited to internet browsing.

A problem with Microsoft's Windows Genuine Advantage (WGA) over the weekend caused some users to mistakenly have their copies of Windows XP and Vista labeled as fraudulent.

They’re faster than hard drives, and save battery life, but do they last? Intel says yes, and has 80GB and 160GB SSDs on the way.

A new name for the second beta release of this anti-spyware tool

Update to the anti-spyware tool

Update to the anti-spyware tool

Final release of the anti-spyware tool

Free commercial anti-virus tool

Microsoft lacks credibility in securing its own operating system, security vendor alleges.

Traditionally firewalls were the bastion of large, publicly accessible networks to keep hackers out. But in a world connected by the Internet, every machine hooked up to it becomes publicly accessible, and so it's vital that every machine is equipped to protect itself, and the network it may serve, from attack.