Secure Boot & BitLocker Fixes: Everything You Need to Know About Windows 11 Update KB5083769
ID: 033bafff-27f8-5627-b220-1dd137d8c0ff
STIX ID: report--033bafff-27f8-5627-b220-1dd137d8c0ff
Feed Name: securityonline.info
**Executive summary:** Microsoft released the April 2026 cumulative update KB5083769 for Windows 11 (24H2 and 25H2) addressing several systemic issues — improved telemetry for UEFI Secure Boot certificate renewals, a BitLocker recovery-mode fix, SMB compression reliability over QUIC, stronger anti-phishing warnings for RDP files, and restoration of the “Reset this PC” feature — and is prompting phased rollout notifications in Windows Security Center to guide certificate transitions ahead of legacy certificate expiration.
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