Microsoft Releases Key WinRE and Setup Updates to Prepare for 2026 Secure Boot Changes
ID: d8f605e0-f275-5d96-b362-26fb79176fd2
STIX ID: report--d8f605e0-f275-5d96-b362-26fb79176fd2
Feed Name: GBHackers
Microsoft released Setup Dynamic Update KB5081494 for Windows 11 (24H2/25H2) on March 26, 2026 to update setup binaries and prepare devices for Secure Boot certificate expirations scheduled for June 2026; the update replaces KB5079271, is distributed automatically via Windows Update, requires no restart or prerequisites on clients, and administrators are advised to consult server guidance to avoid boot failures and operational disruption.
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