Get the installer from the official Bit Driver website. Install: Follow the setup wizard on your PC.

The standard free trial of the Pro version lasts 15 days. There is no legal "trial reset" hack, but you can create a system restore point before installing, use the trial, and restore. Note that this is against the software’s EULA.

: Automatically download and install all missing or outdated drivers at once, rather than manually updating them one by one. Backup & Restore