Cannot install Flash Player on Windows?

Problem

You’re having trouble installing the Flash Player Active X control on Windows. Every time you run the installer it quits, recommending an Adobe Technote. The trouble is this doesn’t solve the problem either. You’ve uninstalled the previous player, quit all apps, still no joy.

Solution

In this situation the cause is probably incorrect registry permissions. You can correct this by using Microsoft’s SubInACL tool. It is available here bundled with a script which will whip through your registry granting full permissions to administrators for the appropriate keys. You should then have no problem running the Flash Player installer.