Although that command should be able to run from the Run window, you could type cmd in the Run window and once you have the command window open, type what I previously suggested (netsh winsock reset) I notice that you posted 'netsh winsock rest' with a missing 'e' reset not rest.
If you first open a cmd window and type the command the cmd windows doesn't close after running the command, so if there are any errors/results then you will see them.
So if you entered that it would fail as it is an incorrect command.
If that doesn't work, the only other option is to download the file lspfix.exe and transfer and run it on the effected system, but that should do the same as the command did.