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To turn Microsoft Defender Firewall on or off: Select the Start button > Settings > Update & Security > Windows Security and then Firewall & network protection. Open Windows Security settings. Select a network profile. Under Microsoft Defender Firewall, switch the setting to On. If your device is connected to a network, network policy settings ...

For more on configuring basic firewall settings, see Turn on Windows Firewall and Configure Default Behavior and Checklist: Configuring Basic Firewall Settings.. Understand rule precedence for inbound rules. In many cases, a next step for administrators will be to customize these profiles using rules (sometimes called filters) so that they can work with user apps or other types of software.

Follow these steps to automatically repair Windows Firewall problems: Select the Download button on this page.. In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Firewall Troubleshooter.

To restore Windows Firewall Defaults . Click on Start. Type Windows Defender Firewall and then press Enter. Click on “Yes” if you get the UAC prompt. On the left pane, click on Restore Defaults. Restore Defaults and click on OK. Restart the computer and check. You may also want to check if the router firewall settings. Let us know the results.