Start Server Manager. Click Start, right-click Computer, and then click Manage.
If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
In the Features Summary section, click Add features.
In the Add Features Wizard, select Telnet Client, and then click Next.
On the Confirm Installation Options page, click Install.
When installation finishes, on the Installation Results page, click Close.