Most Windows “hardening” advice is either opaque scripts or shallow tips. The Windows Blackbook is different: 36 chapters with exact steps—Settings paths, Group Policy nodes, registry keys, and verification commands. Built from CIS, STIGs, and Microsoft baselines, it covers everything from firmware to browser, with risk ratings, rollback steps, and a quick 15‑minute path. Real, testable security you can understand, verify, and undo.