In this tutorial, we’ll guide you on how to enable the Shields Up mode in Windows Firewall on Windows 11 and 10 to mitigate damage during an active attack. This feature is crucial for blocking incoming connections that may compromise your system during a security incident. By following the steps outlined below, you will learn how to activate this protective measure efficiently.

Step 1: Enabling Shields Up Mode via Windows Settings

To enable the Shields Up mode using Windows Settings, follow these steps:

  1. Click on the Windows Search bar and type Windows Security.
  2. Select the matching result to open Windows Security.
  3. In the left sidebar, select Firewall & network protection.
  4. On the right side, click on the network type (e.g., Public or Private) for which you want to enable Shields Up mode.
  5. Under Incoming connections, enable the option labeled Blocks all incoming connections, including those in the list of allowed apps.
  6. When prompted by User Account Control (UAC), click Yes.

Step 2: Enabling Shields Up Mode via Control Panel

If you prefer using the Control Panel, you can enable Shields Up mode by following these steps:

  1. Open the Control Panel.
  2. Change the View by option to Large icons.
  3. Click on Windows Defender Firewall.
  4. On the left sidebar, click the link that says Turn Windows Firewall on or off.
  5. Select the checkbox labeled Block all incoming connections, including those in the list of allowed apps for your network type.

By enabling this feature, Windows Firewall will block all incoming connections, overriding any exceptions that may have been previously set. It is advisable to enable this mode only if your network is under attack. Once the threat has been addressed, remember to turn off this feature to restore normal functionality.

Extra Tips & Common Issues

Here are some additional tips to simplify the process:

  • Ensure you have administrative privileges to make these changes.
  • Be aware that enabling Shields Up mode will limit connectivity, which may interfere with certain applications that require network access.
  • After dealing with an attack, promptly disable Shields Up mode to avoid disruptions.
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