Microsoft Confirms Windows Update Bug Blocking Security Fixes
ID: e88a1af8-3981-5809-a7f1-cceaad0faf75
STIX ID: report--e88a1af8-3981-5809-a7f1-cceaad0faf75
Feed Name: TechRepublic Security
Microsoft's May cumulative update KB5089549 is failing to install on systems with low free space on the EFI System Partition (ESP), producing error 0x800f0922 and causing installs to roll back; Microsoft has deployed a Known Issue Rollback (KIR) and published mitigations including a registry change for consumers and a Group Policy option for enterprises.
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