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Need to re-install Microsoft ACPI Compliant Control Method Battery - how can I do this?

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HP Zbook Studio G3
Microsoft Windows 7 (64-bit)


I had some battery issues and in a move of extreme brilliance, I de-installed the Microsoft ACPI Compliant Method Battery Control driver in the window 7 device manager.


Upon reboot it did not re-install.  This is a huge pain and I seem unable to find a way of getting it re-installed.


When I do "scan for hardware changes"  windows starts "Installing device driver software"  but it unable to find this driver.  It comes up with "Unidentified Device"


I would be VERY happy to download and manually install this again.  Right now the battery seems to work but I have NO idea how much charge it has...  and I can't turn it on in the Notification Center.  The "Power" option is grey'ed out in the systems options.


Any advise or help would be most greatly appreciated!




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If I just replace the battery with a new one will that fix it?

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