Windows 7: Network settings wont listen to me. Change by themselves

I'm connecting my laptop with Windows 7 pro x64 to a digital player via lan
the computer doesnt ask me what kind of network it is? why? it names it unidentified so i cant share files to it

and why are the options from public advanced settings changing exactly like private setting?



i want sharing for private and it disabled in public, but if i set it on at private it switches itself on in public also

i messed with some registrys but i reverted it to what it was in the start, i think...
i changed somethig in services.msc and Local Security Policy editor, i changed it back.

my antivirus is security essentials and uac is set to never interrupt

help