Jernej Simončič � on Nostr: APM did exist, but mainly in laptops. AT PCs had power switches that operated on AC ...

APM did exist, but mainly in laptops. AT PCs had power switches that operated on AC power, ATX with software power off was only released a month before 95 went RTM, and I'm not sure if any machines were ready before the release.

Last Windows version with the "safe to shutdown" screen was Server 2003.