Microsoft has released update KB4577586 to remove Adobe Flash from Windows and prevent it from being reinstalled.
In September 2020, Microsoft announced that an optional update would be released in the fall to uninstall Adobe Flash Player and prevent it from being reinstalled on the same device.
Today, Microsoft released update KB4577586 “Adobe Flash Player Removal Update: October 27, 2020” to remove Adobe Flash from all versions of Windows 10 and Windows Server.
This optional update is only available through the Microsoft Catalog and, once installed, cannot be removed later.
Those who want to install Adobe Flash Player on a device with this update must reset the device to an earlier restore point or install a new copy of Windows 10.
Once installed, Microsoft declares that Adobe Flash Player will be automatically removed. In our testing, however, Adobe Flash Player remained installed after installing the update, as shown below.
BleepingComputer has contacted Microsoft to determine why the update does not remove Flash Player in our tests.
Microsoft says it will make this update available through WSUS and Windows Update to perform a full-scale Flash Player removal in early 2021, after Flash reaches the end of its life.