What Control Panel icon should be accessed to configure TCPIP LAN settings in a Windows PC?

To configure TCP/IP LAN settings in a Windows PC, you should access the "Network and Sharing Center" from the Control Panel. From there, click on "Change adapter settings" on the left sidebar. Right-click on the appropriate network connection (e.g., Ethernet or Wi-Fi) and select "Properties," then choose "internet Protocol Version 4 (TCP/IPv4)" to configure the settings.