KB5027231

This update addresses security issues for your Windows operating system.     

This update addresses a known issue that affects 32-bit apps that are large address aware and use the CopyFile API. You might have issues when you save, copy, or attach files. If you use some commercial or enterprise security software that uses extended file attributes, this issue will likely affect you. For Microsoft Office apps, this issue only affects the 32-bit versions. You might receive the error, "Document not saved." 

This update addresses a compatibility issue. The issue occurs because of unsupported use of the registry.

This update addresses an issue that affects the Windows Kernel. This issue is related to CVE-2023-32019. To learn more, see KB5028407.