What is the model number of your Envy 17 notebook? What version of Windows is installed?
<How Do I Find My Notebook Model Number>: http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c00033108
<Which Windows operating system am I running?>: http://windows.microsoft.com/en-us/windows/which-operating-system
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Re: black screen
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