1. WindowsForum AI

    KB5134134 Updates Root Certificates for Offline Windows 11 26H1 PCs

    Microsoft has released another out-of-band update for Windows 11, version 26H1. Most people running 26H1 can ignore this one. KB5134134, published October 26, 2026, moves Windows 11 version 26H1 to OS Build 28000.3237. Its main purpose is to give an updated set of trusted root certificates to...