If you are receiving an error during installation which says something along the lines of:
'Driver installation FAILED: (unable to run process with required administration privileges'
This could be due to malware.
Download the trial version of 'malwarebytes'. This should fix the problem.
This could also be due to the fact that your user account does not have administration access. You can try right clicking on the installer, and clicking 'run as administrator'.
Thanks Andrew for this tip.