Have you been receiving this error message after you upgraded to Windows 10?

Error message: ‘Robert – Sending’ reported error (0x800CCC13): ‘Cannot connect to the network. Verify your network connection or modem’

At the moment, this seems like a relatively common issue, but the exact cause cannot be pinpointed as of yet. However, we can provide a solution to get your emails back into working condition.


The first thing you will notice is that all the mail server settings are correct and interestingly enough, the test message is successful as well

Windows Resource Checker –sfc /scannow

To recover from the issue, you must run the Microsoft Windows Resource Checker tool, also know as “System File Checker” or “sfc”. This tool scans and verifies the integrity of all protected system files and replaces incorrect versions with correct versions.

  • Right click on the Start button of Windows and choose: Command Prompt (Admin).
  • If you don’t see this, instead choose: Windows PowerShell (Admin)
  • Behind the prompt type: sfc /scannow (note the space in the command)
  • Wait until the process completes. This usually doesn’t take longer than 20 minutes with a regular hard disk and takes much shorter when you have a fast SSD drive.
  • Restart your computer.

Command: sfc /scannow
With sfc /scannow some critical Office files are being put back where they needed to be after upgrading to Windows 10.