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Vista 系统每次登陆自动创建加载一个临时用户的profile

症状：
每次登陆桌面会自动还原，增加文件后重启，或者重登陆后就消失

（其实这个只是最明显的症状）

分析：
没有发现可疑进程和自启动项
打开cmd发现所在目录是c:\users\temp.
c:\users\ 目录还在，内容也还在

于是可以看出是系统创建了一个临时用户。

解决：
根据 http://szmmzs.itpub.net/post/3256/482379

在事件查看器中应当可以看到如下事件
Log Name: Application
Source: Microsoft-Windows-User Profiles Service
Date: Date
Event ID: 1511
Task Category: None
Level: Warning
Keywords: Classic
User: User
Computer: Computer
Description:
Windows cannot find the local profile and is logging you on with a temporary profile. Changes you make to this profile will be lost when you log off.

一般来说产生的原因可能是profile目录内容损坏或者权限问题，但我看了一下，似乎都不是
解法是
1 用有管理员权限的其他用户登陆（实在没有别的用这个登录其实也行）
2 备份c:\users\，并改名/删除
3 用管理员打开regedit, 定位于HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
4 找到一个.bak, 其中的ProfileImagePath应当为c:\users\
5 删除.bak这个项，注销，并用出问题的用户登陆
6 这时c:\users\应当被重建
7 恢复备份的内容
8 重登陆

这是应该就没问题


另一说问题是该用户属于guest组，取消即可。 但这次遇到的不是这个情况。
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