I am sorry you are having problems but let me help you.
Based on the information you have provided I noticed you install an older driver version (not the latest) so please uninstall the current driver and install this driver:
If you get any problem during the installation, try the steps mentioned at the following link:
Thanks for the reply. I did initially install the most recent driver version (file win64_153318.exe) this was when my computer refused to launch any graphical applications with the above errors. I then tried to delete and install the previous version (this didn't appear to work, as in device manager it was still showing the latest driver) but I guess it must have worked, although I still continued to get the problems.
I have (somehow) temporarily fixed the issue. I actually deleted my Nvidia driver and my 4000 driver, rebooted my computer, after the restart I had no drivers installed. Somehow my computer took it upon itself to re-install drivers for both the devices and now my applications seem to be running okay. I'm a bit concerned about deleting and updating to the most recent driver (when it was upon doing so that I started experiencing problems). I think I'll stick with what it has installed (V10.18.10.3412) until a newer driver is released.
But many thanks for your assistance.