A recent wave of community benchmarking — amplified by a TrigzZolt video and summarized across the tech press — has delivered a blunt, attention-grabbing claim: on one commonly used vintage laptop, Windows 11 finished dead last in responsiveness and resource efficiency compared with Windows XP, Vista, 7, 8.1 and 10. The test’s headline conclusion — that Microsoft “may have created the slowest Windows in 25 years” — is provocative, but the data behind it, the conditions that produced it, and...