You may need the Lenovo one key recovery download, the one for windows 7 may work with windows 8 ? There is not a one key downloadable driver for windows 8 on your system the one offered for windows 7 is available in 32 or 64 bit. The power profile for your device sleep wake ect can be adjusted through windows power management it may also need to be adjusted through the nvidia soft ware if it has nvidia graphics. All your troubles would be present if you re installed an OS or upgraded if so there may be several missing drivers ect.
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