Windows PCs that are not up to date will lose Windows Update itself in 2027

Windows Update uses certificates, digital IDs, to confirm a PC is fetching patches from Microsoft's real servers, and those IDs expire on a schedule. Microsoft says the current ones run out on May 17 and June 19, 2027, and machines that have not installed the required security update before then will lose access to Windows Update; PCs kept current by monthly updates get the replacements automatically.

Summary written with AI by HowTechMoves, based on reporting by MIXED Reality News.