The link in my first post will take you to the 411.70 driver.
If you insist on sticking with PD14, you will have to continually monitor which nVidia driver is installed as Windows will automatically try to update to a newer version. You should also keep the 411.70 installer in an easy to find location so you can run it when you need it.
Also, you may first have to uninstall the current nVidia driver using the Windows uninstaller,
then reboot without being connected to the internet before you can install the older 411.70 version. If you boot with an internet connection, Windows is going to download and install the latest driver again and you'll be behind the 8-ball again.