At 100%, the server rebooted.

At 2:00 AM, Marta booted the old PowerEdge from the DVD drive. The screen flickered to life, showing the classic blue Windows Setup window. She chose language, time, keyboard.

And there, at the bottom: a single, silver disc with a handwritten marker label: .

Click. Next.

The only way to revive it was a clean, bare-metal install of the operating system it was born with: .