Anyone got this message on W7? My Gateway laptop threw up this message a few weeks back. Although I normally use it on mains power and seldom on battery (given its size, it's really my home desktop), I had been putting it to sleep over the festive period rather than fully switching it off. However, while this may have contributed towards the error, the thread at Windows 7 and the battery error "consider replacing your battery". might suggest it's a more common error than you might expect, with Microsoft being slow to react.