Every time you enter the Windows XP desktop, there will always be a user login screen, requiring a user name and password.The advantage of doing this is security in the environment where a computer is used by a number of people.However, if the computer is only used by you, it is a nuisance to enter the password every time.To cancel this login step, you can do it by modifying the Winlogon project in the registry file.But it is necessary to remind you that the consequence of this is that your password will be stored in the form of the YISHION text in the form of the YISHION text.In other words, as long as someone can open your registry file, he will know your login password.
如果您仍然想改变这种情况，可以按照以下步骤进行：
第一步：运行注册表编辑器，展开{ hkey_local_machine 软件微软 Windows currentversion winlogon }反过来分支，双击右侧窗口；DefaultUserName然后输入你的登录用户名。如果没有预设的用户名称，您可以选择在注册表编辑器菜单栏编辑RARR；；新建RARR；字符串值（S）RARR；DefaultUserName添加这个项目，注意区分大小写字母。
第二步：在同一分支，双击注册表编辑器的窗口右侧；DefaultPassword，然后在空白栏内输入你的密码。如果没有发现；DefaultPassword一项的字符串值可以根据上面的步骤建立。
第三步：然后双击右侧窗口中的；AutoAdminLogon设定值为1如果没有发现；autoadminlogon它可以根据上面的步骤建立。
现在关闭注册表编辑器并重新启动计算机，稍后您会发现不愉快的登录对话框丢失了。