starting Network Location Awareness Service

Hi All
I have an Acer Laptop that can not connect to the internet (wireless) as is sais that the dependancy service or groups failed to start. After some investigation I logged in with the hidden admistrator account and tried to start the service via services.msc. The service would not start. I then did some google searching and changed the LogOn for this service from This Acount (Network Service) to Local System Account however this did not fix the problem. I have since tried to set it back to the Network Service Account and it is saying invalid password. I do not know what the Network Service Account password is. Is there any way I can fix this problem or have I totally ruined it
Thanks in advanceStart Free Trial