How to reinstall the TCP/IP protocol

To reinstall the TCP/IP protocol, run --regedit.exe, open the Registry Editor, and delete the following two keys: (after the computer restarts, a new one is automatically generated) HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ WinsockHKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ Winsock2. Open % winroot % \ inf \ nettcpip in notepad. find the inf file: [MS_TCPIP.PrimaryInstall] Characteristics = 0xa0 <------ change 0Xa0 here to 0x80 and save it. (if the system is 2000, it is 0x80. skip this step) 3. Open the TCP/IP attribute of the local connection-add protocol-view the saved nettcpip from the disk. inf (% winroot % \ Inf \ nettcpip. inf) file, and then select "TCP/IP protocol" (do not select the TCP/IP version 6 ). After this step, the network connection window is returned, but the "unmount" button is available at this time. Click the "Uninstall" button to delete the TCP/IP protocol and restart the machine once. 4. After restart, follow Step 4 to reinstall the TCP/IP protocol. 5. restart again. You can set the IP address as needed.