Windows 7 PC windows 7 can't see PC XP and Vista?

The issue you are experiencing with network visibility between your Windows 7 PC and other PCs, despite Norton Internet Security and ping being able to see all the network devices, could be due to several reasons. Here are some common troubleshooting steps you can take to address this problem: 1. Check Network Discovery Settings: - Ensure that network discovery is turned on for all PCs. To do this: - Go to Control Panel > Network and Sharing Center > Change advanced sharing settings. - Make sure that Network discovery is enabled. 2. Workgroup Settings: - Verify that all PCs are in the same workgroup. - Right-click on Computer > Properties > Advanced system settings > Computer Name > Change. - Check the workgroup name and ensure it is the same on all PCs. 3. Firewall Settings: - Confirm that Windows Firewall settings are not blocking network discovery. Temporarily disable the firewall to test network visibility. - Go to Control Panel > System and Security > Windows Firewall > Turn Windows Firewall on or off. 4. Network Location: - Make sure that the network location is set as Home or Work and not as Public. Public network settings can block network discovery. - Go to Control Panel > Network and Sharing Center > Network Location. 5. Network Sharing Settings: - Check that file and printer sharing is turned on. - Go to Control Panel > Network and Sharing Center > Change advanced sharing settings. 6. Network Adapter Settings: - Ensure that network adapter settings are correct and set to discover other devices on the network. - Go to Control Panel > Network and Sharing Center > Change adapter settings. 7. Restart Network Services: - Restart the Function Discovery Provider Host and Function Discovery Resource Publication services. - Type services.msc in the Start menu, find these services, right-click, and select Restart. 8. Reset TCP/IP: - Open Command Prompt as administrator and run the following commands: - netsh int ip reset - netsh winsock reset By following these steps, you can troubleshoot and potentially resolve the issue of network visibility between your Windows 7 PC and other devices on your network. If the issue persists, further diagnosis may be necessary to identify any specific network configuration problems.