Resolve Windows GPU Failure

When my discrete GPU is plugged in, Windows turns unusable: no program launches, browsers refuse to load any page, and even the Settings app or the Restart command won’t respond. If I switch to integrated graphics everything works, so the fault is isolated to the GPU output.

The problem appears across all applications and websites.

What I’ve already done without success:
• Clean-installed the latest GPU drivers.
• Reseated the card and confirmed all power and data connections.

I need the system running stably with the GPU connected, able to open applications, browse the web, and access every Windows setting—without crashes or freezes.

Deliverables
• Remote troubleshooting (AnyDesk/TeamViewer) until the machine functions normally with the GPU active.
• A concise report of each change made so I can replicate the fix later.

Let me know your preferred remote tool and estimated time to complete the repair.