问：我使用Windows XP远程桌面连接，访问Vista安装了计算机，但我选择了下一个和最安全的请求身份连接选项，而我无法访问它。我只能访问其他不太安全的连接选项。请问，出什么事了

Answer: This is because you use SSL (TLS) authentication to remote access, but the Windows system before Windows 2003 SP1 needs to upgrade the remote desktop protocol (RDP) to more than 5.2 versions to enable SSL (TLS) authentication to play a normal role.You can find msrdpcli.msi files in C:WINDOWSsystem32clientstsclientwin32 directory of Windows 2003 SP1 or Vista, it is RDP 5.2, copy it to install.After installation, open your remote desktop connection again, click ldquo; option ; button, you will find that there is more than one ldquo on the top; secure ; tab, check ldquo; security ; ldquo on tab; require authentication ;