Today I have faced some issue in one of the PC of my friend in her office. I am a technician and I was called to fix the problem . She can access the internet but she cannot share files and view shared files on the network.After checking everything I found the cause of the problem, The default workgroup name of her PC was changed. Another problem was I cannot add the machine to the domain because the option to click the "change" button is greyed out and therefore cant change the workgroup name.
To fix this problem we need to do the following procedures.
* In run command, open the services.msc
* Search the workstation services and start it.
* Then change the workgroup into its default name.
Note that the workstation service is the client for Microsoft networks and if it is stopped, it affects your computers ability to communicate on the LAN.
If workstation services is missing try to installing it from the Local Area Network connection properties.



