Microsoft’s August update cycle produced an unexpected and dangerous side effect: built‑in recovery tools stopped working on numerous Windows client releases, and Redmond pushed emergency, out‑of‑band (OOB) cumulative updates — KB5066189, KB5066188 and KB5066187 — on August 19, 2025 to restore...
Microsoft released an out‑of‑band update on August 19, 2025—KB5066189 (OS Builds 22621.5771 and 22631.5771)—that quickly became the must‑install patch for Windows 11 22H2/23H2 devices affected by a regression introduced with the August security rollup; the update’s headline fix restores Reset...
Microsoft’s August 2025 Patch Tuesday has left a wake of confusion and real operational pain for many Windows users after Redmond acknowledged that its security rollup unintentionally disabled critical recovery paths on a swath of older client builds — a regression that can prevent “Reset this...