Last night I finally upgraded from Microsoft Vista to Windows 7 and it took 6 hours for the installation to finish. And now I am getting an error message “Consider Replacing Your Battery” even though it is plugged into the outlet and is charged 100%. The window also says “There is a problem with your battery, so your computer might shut down suddenly.” I’ve never had a problem with the battery during the past 18 months when I’ve been running Vista and now all of a sudden there is a problem with the battery. And it’s not just a fluke message bug because if I unplug it from the outlet, the computer shuts down after about 20 minutes. And apparently I am not the only one who has experienced this problem. There are multiple Windows 7 forums with several different threads about the problem. Apparently the only way to remove the warning is to actually replace the battery!