1. Check if the guest account is turned on. On the desktop, right click on my computer - Management - Local Users and Groups - Users, and then in the right box in the guest right click - Properties - account deactivated hook can be canceled.
XP does not enable the guest account by default, so please enable it so that others can browse your computer. Also, for security purposes, please set a password or appropriate permissions for the guest. Of course, you can also set up a username and password for each machine so that computers can access each other.
2. Check to see if the guest user is denied access to the machine from the network
When you have the guest account turned on but still can't access it at all, check to see if it's set to deny the guest access to the computer from the network, because XP doesn't allow the guest to log in from the network by default, so you can't access it even if you've got the guest turned on. To lift the restriction on the guest account in case the system guest user is enabled, click "Start→Run" and type "GPEDIT.MSC" in the "Run" dialog box to open the Group Policy Editor. MSC in the "Run" dialog box, open the Group Policy Editor, select "Computer Configuration→Windows Settings→Security Settings→Local Policies→User Rights Assignments", double-click the "Deny access to this computer from the network" policy, and then delete the "GUEST" policy. Delete the "GUEST" account. This will allow other users to use the Guest account to access the computer using Windows XP over the network.
3. Change the network access mode
By default, XP treats all users logging on from the network as guest accounts, so even if an administrator logs on from the network, he or she will only have guest privileges, so if you encounter a situation where you cannot access the network, try changing the network access mode. Open the Group Policy Editor, select "Computer Configuration → Windows Settings → Security Settings → Local Policies → Security Options", double-click the "Network Access: Local Accounts *** Enjoyment and Security Mode" policy, and set the default settings to "Guest only - local users authenticate as guests" to "Classic: local users authenticate as themselves".
This allows you to log in to the computer you want to access by entering the local account and password that you already have on the computer you want to access, even if you don't have guest enabled. If you need an account and password to access the network, you can log in by entering the account and password already on the computer you want to access.
If you don't change the access mode, you may not even be able to enter a username and password; //computername/guest is grayed out. Even if the password is empty, you won't be able to click OK to log in without turning on the guest. Changing to Classic mode will at least allow you to log in to the computer you want to access by typing your username and password, as was possible in 2000 without the guest account enabled. You may also encounter a special case, which is described in the next section.
4. A note of caution
We may also encounter another problem when the user's passphrase is empty: even if you make all the changes described above, you can't log in, and access is still denied. This is because the "Accounts: Local accounts with blank passwords are only allowed to log on to the console" policy is enabled by default in the system's "Security Options", and according to the principle of denial of priority in the Windows XP security policy, users with empty passwords are not allowed to access computers using Windows XP over the network. According to the Windows XP security policy's deny first principle, users with blank passwords will be prohibited from accessing computers using Windows XP through the network. We can solve the problem by disabling this policy. In Security Options, find the item "Local accounts with blank passwords are only allowed to log on to the console" and disable it, otherwise you will not be able to log on even if you turn on guest and change to classic mode. After the above changes, you can basically access, you can try to choose a method that suits you. I'll add a few more points about other problems you may encounter.
5. You may not be able to see the computer you want to access in Network Neighborhood unless you know the name or IP address of the computer, either by searching for it or by typing //computername or //IP. Start the "Computer Browser" service. "The Computer Browser Service maintains an up-to-date list of computers on the network and makes this list available to computers designated as browsers. If this service is stopped, the list is neither updated nor maintained.