Temporarily Disable Your Third-Party Antivirus Solution
Second, you should turn off your third-party antivirus, as it might be in conflict with your Window live mail email client. If this manipulation has fixed your problem, you should report the issue to your manufacturer or switch to another antivirus solution.
Read more: https://www.shoviv.com/blog/solved-windows-live-mail-error-id-0x800ccc0f
