Adobe Flash 18.104.22.168 was released September 21, 2015. This is a critical patch. You can read the security bulletin for vulnerability APSB15-23 here. This is a priority 1 patch. However, many sys admins have noticed that this update to Adobe Flash does not completely remove earlier versions of Adobe Flash.
If you installed this new update on a machine with a previous version you may have noticed that the Windows Control Panel will still show two versions of Adobe. This is a known bug with this update of Adobe Flash.
Flash fails to remove the registry key from the previous version when updating so the Control Panel and inventory systems (such as PDQ Inventory and SCCM) show two versions as being installed.
There is a preventative measure you can take to make sure the offending Adobe Flash is completely removed and the new Adobe Flash is successfully installed.
1. Silently Uninstall Flash
Since the installer won’t do it for you, you’ll have to get the uninstall out of the way yourself. The Uninstall Adobe Flash package is now available for free from the Package Library. This package is ready-to-go and silently uninstalls without a hitch.
2. Install the appropriate Adobe Flash
After uninstalling you’re now ready to silently install Flash. There are a few flavors of Adobe Flash available for silent installation. Make sure you grab the one that is appropriate for your environment.
Inventorying Adobe Flash Installs
Your computers are properly sorted as having the latest version when it is installed with the following additional filters.
These filters take computers that are showing both the old and new Flash in the registry and sorts them correctly as Flash Plugin (New) (same idea for all versions of Flash available in the Package Library).