LAN winXP (professional) access is a problem that often plagues everyone, many netizens have encountered such failures, and now I will personally summarize some practical experience As below, I hope to help you completely solve the winXP access problem: First, first enable the guest guest account; Second, Control Panel → Administrative Tools → Local Security Policy → Local Policy → User Rights Assignment, add guest from “Access this computer from the network” Account, and "reject to access this computer from the network" delete the guest account; Third, my computer → tools → folder options → view → remove the "Use simple file sharing (recommended)" before the hook; Fourth, set the shared file 5. In the Control Panel → Administrative Tools → Local Security Policy → Local Policies → Security Options, set “Network Access: Local Account Sharing and Security Mode” to “Only Guest-Local User Authentication” (available) Select, this setting removes the requirement to enter when accessing The password dialog box can also be set as "Classic - local user authenticates by himself" depending on the situation); 6. Right click on "My Computer" → "Properties" → "Computer Name", does it appear in this tab? The name of your LAN workgroup, such as "work". Then click the "Network ID" button to start the "Network Identification Wizard": Click "Next", select "This machine is part of the commercial network, use it to connect to other working computers"; click "Next" Select "Company uses a network without a domain"; click the "Next" button, then enter the name of the workgroup for your LAN, such as "work", click the "Next" button again, and finally click the "Finish" button Complete the setup. Generally, after the above steps, it can basically be solved. If not, look down: 7. Check if the local connection is disabled, right click on "Local Area Connection" → "Enable"; 8. Turn off the network firewall; 9. Check if the domain is enabled, whether the domain is added and the domain is checked. Set; X. Check if the server service is closed; 11. Check whether the local connection IP, subnet mask, gateway and DNS settings are incorrect; 12. “Local Area Connection” → Properties → General, check if Microsoft is installed. Network file and printer sharing, "Microsoft Network Client" and TCP/IP protocol; XIII. Some LAN games and software must be installed with the NetBEUI protocol. And there are articles on the Internet that in the small LAN, Microsoft's TCP/IP protocol and NWLink IPX/SPX/NetBiOS compatible protocol supported by WinXP are not satisfactory, in a small LAN (a network with about 200 computers). NetBEUI is one of the least expensive and fastest protocols. Installation method: 1 Put the Windows XP installation CD, copy Netnbf.inf to C:WindowsINF in the “valueaddMsft et etbeui” directory; 2copy Nbf.sys to C:WindowsSystem32Drivers; 3Start→Control Panel→Network Neighborhood” → "Network Connection" → "Local Area Connection" (that is, the LAN connection you are currently using), right click → "Properties" → "General" → "Install" → "Communication Protocol" → → "Add", then you can See the "NetBEUI Protocol" item (this item is not available), after selecting NetBEUI, press OK to confirm. 14. The computer as the web browsing server is caused by viruses, slow configuration, and crashes. The list of computers is not updated, so some machines are sometimes not found in Network Neighborhood. Solution: The easiest way is to restart various network devices and computers, or turn off web browsing on individual computers with the above problems. Server function, the method is as follows: Disable Computer Browser service under win2000/XP Patch the system. WinXP accesses the network neighborhood slowly. This is a bug in WinXP. When we open the network neighborhood, the operating system will first search from the scheduled task, which greatly affects the speed of access unless you This problem can only be solved by installing the SP1 patch. You can solve this problem manually. Find "HKEY_LOCAL_MacHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerRemoteComputerNameSpace" from the registry, there is a subkey named "", which points to "Scheduled Tasks" ", delete it directly. Sixteen, first uninstall the network card driver, restart and reload; 17, hardware problems, check the network card, network cable, hub, router, etc., before checking, it is best to restart the network equipment ( Hub, switch, router) can see whether it can be solved; 18, the cause of the virus (trojan). Upgrade the virus database security mode in full anti-virus.