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.

Learn how to get older apps or programs to run on Windows 10 or Windows 11 by adjusting compatibility settings.

Learn how to use and customize ActiveX controls and filtering in Internet Explorer.

Alternatively, if installation doesn't start automatically, browse the disc to find the program setup file, usually called Setup.exe or Install.exe. Open the file to start installation.

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.

To work around this issue, add the site to the Trusted sites list, or use the Run as administrator option to start Internet Explorer, and then install the ActiveX control.

Because Flash will no longer be supported after 2020, it is turned off by default in the new Microsoft Edge. Other browsers like Google Chrome, Mozilla, and Safari are also planning on removing Adobe Flash in the same timeframe.

To get the stand-alone package for this update, go to the Microsoft Update Catalog website. When you install both the servicing stack update (SSU) (KB4132216) and this update from the Microsoft Update Catalog, install the SSU before you install this update.

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.

Click Tools > Internet Options. Click the Security tab > Custom Level. Click OK to close the dialog boxes, and then restart Internet Explorer. For Internet Explorer 9 and later, you must also disable ActiveXFiltering, if turned on.