HELP! Computer Name greyed out

[indi123]

Hi,
after trying now for several days I'm arrived at the end of my knowledge!
I have a MacBook Air and admin rights, but I can't change the computer name since it is greyed out!!!

Damn! Help needed!

Thx

 

[robbieduncan]

One thread is enough: https://forums.macrumors.com/threads/1271212/