Hello, I have a network of three pcs, mine and two others, my pc has the modem in it. A few days ago my sister deleted some files on her system and now the local area connection says it has limited or no activity when she clicks repair -she cant use the internet on her pc anymore, but the internet will work on the other pc, when i click 'repair' it says: windows could not finish repairing the problem because the following action could not be completed: TCP/IP is not enabled for this connection. On her pc it says that it doesn't have an IP address or needs a new one....please please can anyone help? 
