Microsoft has released an update for Windows 8 that fixes several vulnerabilities in Internet Explorer, Word and Exchange. This is the first time the software giant has issued a fix for the relatively new Internet Explorer 10. Five of the seven security updates were marked 'Critical' in the Windows Update service, while the other two were labeled 'Important'. Nine of the 12 vulnerabilities were marked 'Critical'.All is not well in the world of Windows 8, however. According to an earlier report, sales of Windows-powered computers fell 21 percent overall in November. This indicates a very lackluster debut for Microsoft's operating system. Since the launch of Windows 8 on October 26, Windows laptop sales are down 24 percent, while desktop sales are down 9 percent compared to the same period last year, said NPD Group, which tracks computer sales weekly using data supplied by retailers.
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