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

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

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.

How to obtain and install the update

Windows Update

This update is an optional update in Windows Update.

Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Service

This update is an optional update in Windows Server Update Service (WSUS).

References

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

Adobe Flash Player EOL General Information Page

Since Adobe no longer supports Flash Player after December 31, 2020 and blocked Flash content from running in Flash Player beginning January 12, 2021, Adobe strongly recommends all users immediately uninstall Flash Player to help protect their systems.

Some users may continue to see reminders from Adobe to uninstall Flash Player from their system. See below for more details on how to uninstall Flash Player.

UPDATED: January 13, 2021

Adobe stopped supporting Flash Player beginning December 31, 2020 (“EOL Date”), as previously announced in July 2017.

Open standards such as HTML5, WebGL, and WebAssembly have continually matured over the years and serve as viable alternatives for Flash content. Also, major browser vendors are integrating these open standards into their browsers and deprecating most other plug-ins (like Flash Player). See Flash Player EOL announcements from Apple, Facebook, Google, Microsoft and Mozilla.

By providing more than three years’ advance notice, Adobe believes that there has been sufficient time for developers, designers, businesses, and other parties to migrate Flash content to new standards. The EOL timing was in coordination with some of the major browser vendors.

After the EOL Date, Adobe will not issue Flash Player updates or security patches. Adobe strongly recommends immediately uninstalling Flash Player. To help secure your system, Adobe blocked Flash content from running in Flash Player beginning January 12, 2021. Major browser vendors have disabled and will continue to disable Flash Player from running.

Flash Player may remain on your system unless you uninstall it. Uninstalling Flash Player will help secure your system since Adobe will not issue Flash Player updates or security patches after the EOL Date. Adobe blocked Flash content from running in Flash Player beginning January 12, 2021 and the major browser vendors have disabled and will continue to disable Flash Player from running after the EOL Date.

Click “Uninstall” when prompted by Adobe, or follow these manual uninstall instructions for Windows and Mac users.

Since Adobe is no longer supporting Flash Player after the EOL Date, Adobe blocked Flash content from running in Flash Player beginning January 12, 2021 to help secure your system. Flash Player may remain on your system unless you uninstall it.

Browsers and operating systems that support Flash Player continue to decrease so Adobe strongly recommends immediately uninstalling Flash Player.

Apple Safari version 14, released for macOS in September 2020, no longer loads Flash Player or runs Flash content. Please visit Apple’s Safari support for more information.

Please visit http://www.adobe.com/products/flashplayer/tech-specs.html for the latest list of Flash-supported browsers and operating systems.

No. Adobe has removed Flash Player download pages from its site. Adobe blocked Flash content from running in Flash Player beginning January 12, 2021.

No. These versions of Flash Player are not authorized by Adobe. You should not use unauthorized versions of Flash Player. Unauthorized downloads are a common source of malware and viruses.

Adobe will not issue Flash Player updates or security patches after the EOL Date. Adobe strongly recommends uninstalling Flash Player immediately.

Adobe Flash Player EOL General Information Page

Since Adobe no longer supports Flash Player after December 31, 2020 and blocked Flash content from running in Flash Player beginning January 12, 2021, Adobe strongly recommends all users immediately uninstall Flash Player to help protect their systems.

Some users may continue to see reminders from Adobe to uninstall Flash Player from their system. See below for more details on how to uninstall Flash Player.

UPDATED: January 13, 2021

Adobe stopped supporting Flash Player beginning December 31, 2020 (“EOL Date”), as previously announced in July 2017.

Open standards such as HTML5, WebGL, and WebAssembly have continually matured over the years and serve as viable alternatives for Flash content. Also, major browser vendors are integrating these open standards into their browsers and deprecating most other plug-ins (like Flash Player). See Flash Player EOL announcements from Apple, Facebook, Google, Microsoft and Mozilla.

By providing more than three years’ advance notice, Adobe believes that there has been sufficient time for developers, designers, businesses, and other parties to migrate Flash content to new standards. The EOL timing was in coordination with some of the major browser vendors.

After the EOL Date, Adobe will not issue Flash Player updates or security patches. Adobe strongly recommends immediately uninstalling Flash Player. To help secure your system, Adobe blocked Flash content from running in Flash Player beginning January 12, 2021. Major browser vendors have disabled and will continue to disable Flash Player from running.

Flash Player may remain on your system unless you uninstall it. Uninstalling Flash Player will help secure your system since Adobe will not issue Flash Player updates or security patches after the EOL Date. Adobe blocked Flash content from running in Flash Player beginning January 12, 2021 and the major browser vendors have disabled and will continue to disable Flash Player from running after the EOL Date.

Click “Uninstall” when prompted by Adobe, or follow these manual uninstall instructions for Windows and Mac users.

Since Adobe is no longer supporting Flash Player after the EOL Date, Adobe blocked Flash content from running in Flash Player beginning January 12, 2021 to help secure your system. Flash Player may remain on your system unless you uninstall it.

Browsers and operating systems that support Flash Player continue to decrease so Adobe strongly recommends immediately uninstalling Flash Player.

Apple Safari version 14, released for macOS in September 2020, no longer loads Flash Player or runs Flash content. Please visit Apple’s Safari support for more information.

Please visit http://www.adobe.com/products/flashplayer/tech-specs.html for the latest list of Flash-supported browsers and operating systems.

No. Adobe has removed Flash Player download pages from its site. Adobe blocked Flash content from running in Flash Player beginning January 12, 2021.

No. These versions of Flash Player are not authorized by Adobe. You should not use unauthorized versions of Flash Player. Unauthorized downloads are a common source of malware and viruses.

Adobe will not issue Flash Player updates or security patches after the EOL Date. Adobe strongly recommends uninstalling Flash Player immediately.

Microsoft выпустила опциональное обновление KB4577586, которое удаляет Adobe Flash Player из ОС Windows

27 октября 2020 года Microsoft выпустила обновление KB4577586, которое удаляет Flash с пользовательских и серверных ОС Windows. Скачать патч для Windows 8/8.1/10/10 LTSB и Windows Server 2012/2012R2/2016/2019 можно из каталога центра обновлений Microsoft.

После установки обновления потребуется перезагрузка, а в системе, в том числе в панели управления, пропадут все настройки, связанные с Adobe Flash Player. KB4577586 нельзя будет удалить из системы после развертывания. Также это обновление предотвращает повторную установку Adobe Flash Player в систему.

Microsoft пояснила, что если пользователю понадобится установить Adobe Flash Player на устройство с этим обновлением, то ему будет необходимо выполнить откат до более ранней точки восстановления или установить новую копию Windows 10 вместо текущей системы.

Специалисты портала Bleeping Computer выяснили, что после установки KB4577586, компоненты Adobe Flash Player, встроенные в Microsoft Edge и другие браузеры в системе, останутся нетронутыми и рабочими. Также обновление не удаляет standalone-версии Adobe Flash Player, установленные в системе.

Microsoft планирует сделать это обновление доступным через WSUS и центр обновления Windows, чтобы начать глобальный процесс удаления Flash Player в начале 2021 года после того, как Flash перестанет работать.

В мае этого года Mozilla заявила, что исключит поддержку Flash из версии Firefox 84, которая выйдет в декабре.

Google перестала индексировать Flash-контент еще в 2019 году из-за перехода на HTML5.

В сентября Microsoft объявила, что браузеры компании окончательно лишатся поддержки Flash 31 декабря 2020 года. Flash уберут из Internet Explorer 11, Edge Legacy и Edge Chromium.

Security Update for Adobe Flash Player: June 9, 2020

Adobe Flash Player will go out of support by December 31, 2020. For more information, see Adobe Flash end of support on December 31, 2020.

Adobe Flash Player on Windows 10 for 32-bit Systems

Adobe Flash Player on Windows 10 for x64-based Systems

Adobe Flash Player on Windows 10, version 1607 for 32-bit Systems

Adobe Flash Player on Windows 10, version 1607 for x64-based Systems

Adobe Flash Player on Windows 10, version 1709 for 32-bit Systems

Adobe Flash Player on Windows 10, version 1709 for ARM64-based Systems

Adobe Flash Player on Windows 10, version 1709 for x64-based Systems

Adobe Flash Player on Windows 10, version 1803 for 32-bit Systems

Adobe Flash Player on Windows 10, version 1803 for ARM64-based Systems

Adobe Flash Player on Windows 10, version 1803 for x64-based Systems

Adobe Flash Player on Windows 10, version 1809 for 32-bit Systems

Adobe Flash Player on Windows 10, version 1809 for ARM64-based Systems

Adobe Flash Player on Windows 10, version 1809 for x64-based Systems

Adobe Flash Player on Windows 10, version 1903 for 32-bit Systems

Adobe Flash Player on Windows 10, version 1903 for ARM64-based Systems

Adobe Flash Player on Windows 10, version 1903 for x64-based Systems

Adobe Flash Player on Windows 10, version 1909 for 32-bit Systems

Adobe Flash Player on Windows 10, version 1909 for ARM64-based Systems

Adobe Flash Player on Windows 10, version 1909 for x64-based Systems

Adobe Flash Player on Windows 10, version 2004 for 32-bit Systems

Adobe Flash Player on Windows 10, version 2004 for ARM64-based Systems

Adobe Flash Player on Windows 10, version 2004 for x64-based Systems

Adobe Flash Player on Windows 8.1 for 32-bit systems

Adobe Flash Player on Windows 8.1 for x64-based systems

Adobe Flash Player on Windows RT 8.1

Adobe Flash Player on Windows Server 2012

Adobe Flash Player on Windows Server 2012 R2

Adobe Flash Player on Windows Server 2016

Adobe Flash Player on Windows Server 2019

This security update resolves vulnerabilities in Adobe Flash Player that is installed on any of the Windows operating systems that are listed in the «Applies to» section.

To learn more about these vulnerabilities, see ADV200010.

All security and nonsecurity updates for Windows Server 2012 R2, Windows 8.1, and Windows RT 8.1 require the installation of update KB2919355. We recommend that you install update KB2919355 on your Windows Server 2012 R2-based, Windows 8.1-based, or Windows RT 8.1-based computer so that you receive future updates.

If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

If you want to install the Adobe Flash Player update on an earlier version of Windows, try Adobe Flash Player download.

Known issues in this update

We are currently not aware of any issues in this update.

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

For Windows RT 8.1, this update is available through Windows Update only.

For Windows Server 2016 and Windows 10, version 1607, the updates may not be installed automatically. To get this update, follow these steps:

Select Start, and then type Check for updates.

Select Check for updates.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Detection and deployment

You can manage the software and security updates that you have to deploy to the servers, desktops, and mobile systems in your organization. For more information, go to the TechNet Update Management Center.

You can download security updates from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content that is made available through Windows Update and Microsoft Update. This includes security updates, drivers, and service packs. For more information, see Microsoft Update Catalog FAQ.

Detection and deployment guidance

Microsoft provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base article KB 961747.

Microsoft Baseline Security Analyzer

Microsoft Baseline Security Analyzer (MBSA) enables administrators to scan local and remote systems for missing security updates and common security misconfigurations. For more information, see Microsoft Baseline Security Analyzer.

Windows Server Update Services

Windows Server Update Services (WSUS) enables information technology administrators to deploy the latest Microsoft product updates to computers that are running Windows. For more information about how to deploy security updates by using WSUS, see the following Microsoft TechNet topic:

Systems Management Server

The following table provides the Microsoft Systems Management Server (SMS) detection and deployment summary for this security update.

SMS 2003 with ITMU

System Center Configuration Manager

Windows 8.1 for 32-bit systems

Windows 8.1 for 64-bit systems

Windows Server 2012 and Windows Server 2012 R2

Note Microsoft discontinued support for SMS 2.0 on April 12, 2011. For SMS 2003, Microsoft also discontinued support for the Security Update Inventory Tool (SUIT) on April 12, 2011. Customers are encouraged to upgrade to System Center Configuration Manager.

For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are supported by Windows Server Update Services. For more information, see Systems Management Server 2003.

System Center Configuration Manager uses WSUS 3.0 to detect updates. For more information, see System Center Developer Documentation Library.

Update Compatibility Evaluator and Application Compatibility Toolkit

Updates frequently write to the same files and registry settings that are required for your applications to run. This can trigger incompatibilities and increase the time that is required to deploy security updates. You can streamline the testing and validation of Windows updates against installed applications by using the Update Compatibility Evaluator components that are included in the Application Compatibility Toolkit (ACT). The ACT for Windows 10 is included in the Windows Assessment and Deployment Kit (Windows ADK).

The Application Compatibility Toolkit contains the necessary tools and documentation to evaluate and decrease application compatibility issues before you deploy a Windows update, a Microsoft security update, or a new version of Windows Internet Explorer in your environment.

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

Windows 10, version 2004

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10, version 1903 and 1909

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10, version 1809 and Windows Server 2019

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10, version 1803

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10, version 1709

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10, version 1703

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10, version 1607 and Windows Server 2016

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10 (initial version released July 2015)

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Windows Server 2012

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

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