Having a trouble activating the flash plugin.

Hello there. when i am trying to watch a video (not from Youtube, but from other sites) i get this error "Couldn't load plugin". So i checked some tutorials in Youtube and iv'e been told to go to Chrome://Plugins and activate flash. It was already activated. After that i saw another video

that explains that i need to press the "Details" botton in Chrome://Plugins and to disable "a part" of the plugin called:

And to enable a file called: C:\Windows\System32\Macromed\Flash\NPSWF64_19_0_0_226.dll

And the problem is i don't have that part. I have only the:

C:\Users\Guy\AppData\Local\Google\Chrome\User Data\PepperFlash\19.0.0.226\pepflashplayer.dll.

So then i realized: Okay, So let me check in C:\Windows\System32\Macromed\ If i have the file. And i have it. But chrome won't show it in the plugins menu.

A Screenshot:

Please help me ASAP!!! Thanks.

Specs:

Flash version: 19

Widnows 7

I am using Google chrome (Newest version)