Update of the day.
A security issue has been identified that could allow an attacker to compromise a computer running Windows and gain complete control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.
Been trying to install Security Update for Windows XP (KB840374) but it fails every time . I have a new XP machne and had no problems with any other updates any ideas? is this an important update?