Many members have posted having permissions issues when installing Adobe Flash Player on a MAC or Windows.
Does ADOBE have a patch fix for this problem yet? Will the latest upgrade (I think 19) fix this problem?
The links you post are to several different issues. What is the exact error you are getting? Please post a screenshot (see The specified item was not found.).
Flash Player requires Admin permissions to install. Please ensure the user has Admin permissions.
Do you have anti-virus software installed? If so, we have found that some anti-virus software interferes with Flash Player installations. Please try disabling it and then installing Flash Player.
Upload the FlashInstall.log file saved at C:\Windows\System32\Macromed\Flash directory using the instructions The specified item was not found.. If this is a 64-bit system there is another FlashInstall.log file saved at C:\Windows\SysWoW64\Macromed\Flash. Both files are required from a 64-bit OS.