Bad driver signature or conflicting driver leftovers. Fix:
Windows 7 is no longer supported by Microsoft, and HP has removed many legacy drivers from their official auto-detection tools. Furthermore, Windows Update often installs a "generic" Microsoft Basic Display Adapter driver, which will give you a picture but zero hardware acceleration . This means: hp elitebook 8460p graphics drivers windows 7 64-bit
If you aren't sure which one you have, you can check using : Bad driver signature or conflicting driver leftovers
Follow the on-screen prompts. Your screen may flicker or turn black momentarily during the process; this is normal. This means: If you aren't sure which one
To check your hardware, right-click on Computer, select Manage, and open the Device Manager. Under Display adapters, you will see exactly which hardware is installed.
Because HP’s website is clunky, we will go directly to the actual driver download pages.
With the proper driver installed, your 8460p will handle 1080p video streaming, dual external monitors at 1920x1080, older Steam games (like Portal or Left 4 Dead 2 ), and all the Aero glass goodness Windows 7 was famous for.