Blocking Port 445 in Windows Firewall: A Step-by-Step Guide

Security is very important nowadays, as there are numerous threats out there, but blocking port 445 can pose some problems.
> I want to block port 445 on my desktop firewall. But it is not were I > expected it to be (inbound traffic). The port for outbound traffic is > showing as 445.
In this article, we explore the best ways to block port 445 and resolve the issue.

Port 445 is blocked in Windows Firewall for security reasons, and it can’t be disabled.
Blocking Port 445 isn’t meant to stop you from using Skype or other applications.
Disabling certain rules in Firewall might remove the need for Port 445.

Run SFC and DISM

Open Run with the Windows key + R shortcut; input sfc/scannow in the text field, and press Enter.
Wait for SFC to scan for system issues; if the scan resolves any issues, it will show a list of them. Press the Restart button.
Open PowerShell with the Windows key + R shortcut; input sfc/scannow in the text field, and press Enter.
Wait for SFC to scan for system issues; if the scan resolves any issues, it will show a list of them. Press the Restart button.

Run chkdsk

Type chkdsk in Run’s text box and click OK.
Then input sfc /scannow in Run’s text box.
Then press the Enter button.
Next, reboot Windows.
Then open the Windows Firewall app, which is installed in Windows.
Click the Allow an app or feature through Windows Firewall button.
Then select Internet Connection Firewall (ICF).
Click Advanced Settings on the ICF tab.
Then select Port 445 in the Allow connection section.
Select Block all incoming connections if it wasn’t selected.
Then press the OK button.

Roll back Windows

Press the Windows key + I to get the Settings app.
Select Update & Security.
Select Recovery from the left pane.
Select the Get Started button under Go back to Windows 7 or 8.1.