KB4577586: Update for the removal of Adobe Flash Player: October 27, 2020

Important notes

  • Adobe Flash Player is out of support as of December 31, 2020. For more information, see Adobe Flash end of support on December 31, 2020.

  • Applying this update will remove Adobe Flash Player from your Windows device.

  • After this update has been applied, this update cannot be uninstalled.

  • This update only removes Adobe Flash Player that was installed by your version of Windows. If you installed Adobe Flash Player manually from another source, it will not be removed. For more information about how to remove Adobe Flash Player, see the Uninstall Flash Player | Windows topic on the Adobe website.

Summary

This update removes Adobe Flash Player that is installed on any of the Windows operating systems that are listed in the "Applies to" section. After you apply this update, it cannot be uninstalled. 

Note If you must use Adobe Flash Player again on your device after this update has been installed, use one of the following methods:

  • Method 1: Reset your device to an earlier system restore point. This feature must be explicitly enabled and a system restore point must have been created on your Windows device before you apply this update.

    For more information about system restore point, see Back up and restore your PC.

  • Method 2: Reinstall your Windows operating system, but do not apply this update.

Known issues in this update

Issue

Resolution

When this update is applied, registry settings for the third-party provided version of Adobe Flash Player may be removed.

To resolve this issue, reinstall the third-party version.

References

Learn about the terminology that Microsoft uses to describe software updates.

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