Failed to write license file - help!!!!

I just installed Unity 5 and every time when i make a new project or run a old one this comes up Failed to write license file.
I have read some solutions abut opening the propetries of Unity_v5.x.ulf but their is nothing wrong, everything is checked and allowed as you can see in the screenshots. PLEASE HELP!!!



Run Unity as admin or give users (benutzer) write access