There are many functions you can summon when using the Ctrl+Alt+Del sequence. You can press these keys simultaneously to launch Task Manager or to lock your computer MCDVOICE
@wanghui 您好，
感谢您的留言。
请您将连接双方所使用的 TeamViewer 软件版本升级至 最新版本后再次连接测试。有关更多软件兼容性的信息，欢迎查阅 TeamViewer 支持的操作系统。
Ying_Q
