05-19-2014 07:51 AM
I you had an enjoyable weekend!
I regret that you are still unable to install the graphic driver.
Would you try this please.
Open Device Manager and uninstall the NVIDIA GEFORCE 840M
Now try to install the latest recommended driver which is sp65437.exe for Windows 8.1 Professional and this notebook.
If you are still unable to install the driver I suggest contacting HP support, for assistance.
Please call HP technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region HP Technical Support Sitemap.
Please let me know the outcome.