1, Start-All Programs-Administrative Tools-Services-(or enter service.exe directly when operating) Find telnet, double-click, select local system account in the Login tab, select startup type in the General tab, select "Manual" and then click the startup below.

2. How to open the server port: First, right-click the computer connection in the lower right corner to open the network connection settings. Select a normal network connection right-click attribute. When I open the local connection properties, I see advanced options. Click Settings in Advanced. Just add a port. Enter the port number to add. Just click OK to restart.