Windows computer

Methods/steps

1. Click Start below, and then click Control Panel.

2. Click System and Security.

3. Click "windows? Firewall ".

4. Click "Advanced Settings" on the left.

5. Click the Inbound Rule on the left.

6. Click "New Rule" on the right.

7. Select Port and click Next.

8. Enter the port to be closed (such as 443) in "Specific Local Port" and click "Next".

9. Select Block Connection, and then click Next.

10. Continue to click Next.

1 1. Enter the close port, and then click Finish to close port 443.