If using the NewTek NDI Virtual Input application from within the HX driver package on a Windows 10 system, you may receive the following error on launch 'A digitally signed driver is required':
To resolve this, you may go to the UEFI / BIOS and disable the Secure Boot option. This will resolve the messages coming up regarding drivers.
- Secure Boot helps to make sure that your PC boots using only firmware that is trusted by the manufacturer.
Disabling Secure Boot with BitLocker enabled may prevent your system from booting. It is recommended to disable BitLocker and ensure you have a working copy of your BitLocker recovery key. Right-clicking a BitLocker-protected drive and selecting Manage BitLocker will provide you the options to duplicate the recovery keys as needed.
- After disabling Secure Boot and installing other software and hardware, it may be difficult to re-activate Secure Boot without restoring your PC to the factory state.
Be careful when changing BIOS settings. The BIOS menu is designed for advanced users, and it's possible to change a setting that could prevent your PC from starting correctly. Be sure to follow the manufacturer's instructions exactly.
Instructions on how to disable Secure Boot can be found here: Disable Secure Boot