After upgrading to Windows 10 Outlook users is seeing few errors, one of the common errors is 0x800CCC13 while sending messages. The Outlook 0x800CCC13 error in Windows 10 can be resolved by running sfc /scannow command as an administrator in command prompt.
In order to use System File Checker (sfs) you have to right click on Windows Start button and choose Command Prompt(Admin)
Outlook 0x800ccc13 error
After the Command Prompt is open, Type sfs /scannow and press Enter (Note: There is a space between sfs and /)
After System File Checker is finished Restart the system.