Prepare for Windows Update certificate rotation in 2027

MC1491763 · published Oct 8, 2026 · 0 comments

What and whyCertificates that help devices establish trusted connections to Windows Update will expire on May 17, 2027, and June 19, 2027. Devices must contain the replacement certificates to continue connecting to Windows Update and receiving updates after the applicable expiration date. Microsoft has delivered the replacement certificates through Windows security updates. Most devices running an in-support version of Windows require no additional action if they are current with monthly Windows...