[Windows][Drivers] Install unsigned device drivers on Windows 8
Win8 enforces driver signatures by default. If you have a Win7 driver   that worked OK, I suggest the following to disable driver signature   enforcement:   From the Metro or Desktop   Bring up Charms by mouseing over to the right of the screen   Go to Settings   More PC Settings   General   Advanced Startup > Restart Now   Trouble shoot   Advanced options   Windows startup options   Restart   Click on 'Disable driver signature enforcement   Reboot   Install the relevant driver, allowing the non signed driver to install.   This has worked OK for me installing various old printer drivers.   Just make sure you know the provenance of the driver being installed, as   always.