If you have had Outlook 2013 installed before upgrading to Windows 10 from Windows 7 or 8.1 you may get the following error when trying to send email
Sending reported error (0x800CCC13): Cannot connect to the network. Check your network connection or modem
To fix the Outlook error 0x800CCC13 you will need to run the following command from an administrative command prompt
To do this type in cmd in the start menu, then right click on the command prompt icon and select run as administrator.
Then type in:
sfc /scannow
Now you should be able to send emails from Outlook 2013 on your Windows 10 computer without getting the error Sending reported error (0x800CCC13): Cannot connect to the network. Check your network connection or modem.