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Modifying REGISTRY settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of REGISTRY settings can be solved. How Do I Open a Port on Windows Firewall? Nov 15, 2018 Automatically diagnose and fix problems with Windows Firewall
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May 15, 2010 · You can block a port in the Windows Firewall using the steps shown below : Press the key combination Windows logo key + R to open the Run dialog. Type wf.msc in the Run dialog and press Enter. This would open the Windows Firewall with Advanced Secruity window. Click on the Inbound Rules in the left side menu in the Windows Firewall window as shown,