Where is the function key on acer desktop

[carolg_31]

Hello,
I wish to turn the contrast down on my acer desktop E2200 but don't have a FN key as suggested. Where is it?

 

[ksiemb]

Hello,
I wish to turn the contrast down on my acer desktop E2200 but don't have a FN key as suggested. Where is it?

Laptops have a Fn key in the lower left side, next to the CTRL key. Says Fn on it.
Desktops don't have a Fn key. They have special function keys along the top numbered F1 through F12.
The windows key is the one you find on desktops, and on laptops, in the same place, the key says Fn. They are not the same.