KB4580327

Updates 2021 time zone information for Fiji.

Adds a notification to Internet Explorer 11 that informs users about the end of support for Adobe Flash in December 2020. For more information, see KB4581051.

Updates to improve security when using Microsoft Office products.

Updates for verifying usernames and passwords.

Updates to improve security when Windows performs basic operations.

Updates for storing and managing files.

Adds a notification to Internet Explorer 11 that informs users about the end of support for Adobe Flash in December 2020. For more information, see KB4581051.

Provides the ability to sync the Microsoft Edge IE Mode unidirectional session cookie when an administrator configures the session cookie.

Addresses an issue with Microsoft Edge IE Mode that occurs when you enable Configure enhanced hang detection for Internet Explorer mode in Microsoft Edge.

Allows administrators to disable JScript in specific security zones.

Updates 2021 time zone information for Fiji.

Addresses an issue with the Group Policy service that might recursively delete critical files in alphabetic order from %systemroot%\system32. This issue occurs when a policy has been configured to delete cached profiles. These file deletions might cause stop error “0x5A (CRITICAL_SERVICE_FAILED)” boot failures.

Addresses an issue with creating null ports using the user interface.

Security updates to Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Shell, Windows Cloud Infrastructure, Windows Fundamentals, Windows Authentication, Windows Virtualization, Windows Kernel, and Windows Storage and Filesystems.