最近一台windows 2008 R2服务器不能远程桌面登录，并提示“Remote Desktop cannot connect to the remote computer because the authentication certificate received from the remote computer is expired or invalid。”

参考http://rivald.blogspot.com/2011/06/replacing-self-signed-remote-desktop.html，立马就能登录了。步骤摘录如下，英文简单就不翻译了：

 1. open mmc.exe (Microsoft Management Console)
 2. add the add-in - certificates (for the computer account) (and select local computer)
 3. navigate to the remote desktop folder -> certificates
 4. delete the certificate for the name of the server and close the mmc instance
 5. Go to: administrative tools -> remote desktop services -> remote desktop session host configuration
 6. Select the instance in the main window - rdp -tcp -> right click and select properties
 7. on the window that pops up, select default

其实，碰到这个现象，还是可以用mstsc /admin 命令远程登入的。