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#21
If you still have problems after installing those drivers (and there are no yellow triangles with black exclamation marks in Device Manager) then try starting Windows in Safe Mode. In Safe Mode only core Windows drivers are loaded, so you have a stripped down basic Windows system. Because of this some devices may not work properly (or at all), your display will be low resolution for example, because you'll be using the Windows basic display driver.
If you have problems in Safe Mode then it's almost certainly a hardware problem. If there are no problems in Safe Mode (beyond those caused by no third-party drivers being loaded) then it's almost certainly a software or driver problem.