Microsoft releases free Windows upgrade
Almost since the day Microsoft Corp. released its Windows XP computer operating system nearly three years ago, it has been a favorite target of hackers and critics eager to stress its numerous security shortcomings.
Now, more than two years after promising to do something about it, Microsoft is about to release the biggest update ever for Windows. The free upgrade is designed to make users safer from cyberattacks by sealing entries to viruses, better protecting personal data and fending off spyware.