Flash Player is installed and enabled. Getting message it is not installed.

[kerrimp]

I have uninstalled FP and Java.  Reinstalled and enabled BOTH.  Turned off my firewall and my security system before I installed both.  When I test FP it says it is not installed and to DL.  When I try youtube same message.  But when I check my system, the program is installed.  What do I do at this point?

[C_F_McBlob]

What OS?

What browser?