Raymond Chen explains that holding a PC's power button for 8+ seconds triggers the Windows kernel to capture an emergency kernel dump, classified internally as a 'long power button hold' (LPBH) failure. These dumps record whether the screen is entirely black, which ties into a customer support case about black screen issues.
Background
Raymond Chen's 'The Old New Thing' blog explores Windows internals and forgotten features, often drawing on his decades of experience at Microsoft. This article connects a customer support scenario to the Windows kernel dump mechanism.
- Source
- Lobsters
- Published
- Oct 31, 2026 at 09:01 AM
- Score
- 5.0 / 10