The Update That Vanished: Why Microsoft Hastily Rescinded Windows 11 KB5079391
ID: f6a30135-3ec8-52eb-9ded-0e54717c0477
STIX ID: report--f6a30135-3ec8-52eb-9ded-0e54717c0477
Feed Name: securityonline.info
On March 26, 2026 Microsoft released optional update KB5079391 for Windows 11 (24H2/25H2) and quickly retracted it after some systems encountered installation failures that produced error 0x80073712 and caused repeated automatic re-download and install attempts; Microsoft paused the update to prevent further impact and notes these optional "Class C/D" updates are used for testing and may contain non-security changes or issues.
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