The screen flickered. For one eternal second, the laptop fan roared like a jet engine.

He disabled Driver Signature Enforcement by mashing F8 during boot, navigating the pre-startup menu like a priest reading a black scripture.

In Device Manager, the “Unknown Device” glared back. Marcus right-clicked, selected Update Driver Software , then Browse my computer , then Let me pick from a list . He clicked “Have Disk,” navigated to the hacked INF, and ignored the red warning: “This driver is not digitally signed.”