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Laptop owners who upgrade their Windows XP and Windows Vista machines to Windows 7 are complaining that Microsoft's new operating system (OS) is severely reducing their available battery life. Many users are voicing complaints on Microsoft's TechNet ... forums that after upgrading their notebooks, battery life is dropping from two hours to a half hour. (Source: microsoft.com ) The problem appears to be caused by a new tool Microsoft designed to alert users when their battery needs to be replaced. According to some of the TechNet posts, the alert appears time and time again, even as a battery ... (view more)