How to find and use Windows 10 firewall

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Protect your computer while controlling application access to the Internet

What there is to know

  • Change the settings for Settings firewall under Windows Defender settings settings.
  • You can manually block programs, choose to let applications pass data through the firewall, and / or turn off the firewall completely under settings.
  • Settings marked with a blue shield and orgold require an administrator-level password to access them.

This article explains how to find and use Windows Defender Firewall settings in Windows 10.

Windows Defender Firewall offers several settings that you can configure:

  • Manually block a program allowed by default Tips, such as Microsoft Tips or Get Office. When you block these programs you are, in essence, disabling them. If you’re not a fan of the reminders you get to buy Microsoft Office, or if the tips are distracting, you can make them go away.
  • Choose from leave them applications transmit data through your computer that are not allowed by default. This customization often occurs with third-party applications you install like iTunes because Windows requires your permission to allow both installation and passage. But, related features can also be Windows related, like the ability to use Hyper-V to create virtual machines or remote desktop to access your computer remotely.
  • Turn off completely the firewall . like Do this if you choose to use a different security suite from another vendor, such as antivirus programs offered by McAfee or Norton. This is often considered a free trial on new PCs and users often sign up. You should also turn off Windows Firewall if you have installed an alternative.

Do not turn off the Windows Defender Firewall unless you have another one in place, and do not run multiple firewalls at the same time.

Change Windows Firewall Settings

When you are ready to make changes to the Windows Firewall, type Windows Defender in the search box on the taskbar, then select Windows Defender settings Settings from the list.

From the Windows Defender Firewall area, you can do several things. The option activate or to extinguish windows firewall is in the left pane. It’s a good idea to check here every now and then to see if the firewall is indeed on. Some malware, if it is through the firewall, can turn it off without your knowledge. Just click to verify, then use the back arrow to go back to the main firewall screen. You can also restore the default values ​​if you have changed them. The option Restore through default, again in the left pane, provides access to these settings. offers

Settings marked with a blue shield and orgold require an administrator-level password to access them.

When you authorize an app in Windows Defender Firewall, you choose to allow it to pass data through your computer based on whether you’re connected to a private, private or public network, or both. If such you select only Private for the allow option, you can use the app or feature when you are connected to a private network, such as your home or office. If you choose such Public, you can access the app when you are connected to a public network, such as a network in a cafe or a public hotel. As you will see here, you can also choose both.

To authorize an application through Windows Firewall:

  1. Open menu Start and locate locate Start Defender Security center. Select it.
  2. When the security center opens, select Firewall and protection network.
  3. You will arrive on the firewall page. Near the bottom few, there will be a few options displayed less prominently in the smaller fonts. Among them, select select Authorize a application through firewall.
  4. The next screen that you will see will contain a large table of applications on your system. of Each will have two. checkboxes at next side. Press sure Modify settings at the top right of the table, and type an administrator password if prompted.
  5. Locate the app to enable. He won’t have a check mark next to him.
  6. Select the checkbox (es) to allow entry. There are two options private and public.. Start with Private Only and select select Public later if you don’t get the results you want.
  7. Press well.

The Windows Firewall apps features allow certain Windows 10 apps and features to pass data in and out of a computer without any user input or configuration. . These include Microsoft Edge and Microsoft Photos, and necessary features like Core Networking and Windows Defender Security Center. explicit Other Microsoft applications like Cortana might require you to give your explicit permissions when you first use them, however. This approval opens the required ports in the firewall, among other things. the You can withdraw your consent to bypass the firewall, however.

To block a program on a Windows 10 computer:

  1. In the Windows Defender Firewall applet, select Allow and app firewall.
  2. Press on Edit the settings and type an administrator password if prompted.
  3. Locate the app to block. He will have a check mark next to him.
  4. Select the (es) to checkbox to prohibit entry. There are two options – private and public. Select both.
  5. Press well.

Once this process is complete, the selected applications are blocked depending on the network types you selected.

Why are firewalls important?

In the physical world, a firewall is a wall designed specifically to stop or prevent the spread of existing or approaching flames. When a threatening fire hits the firewall, the wall maintains its ground and protects what it is. there is behind him ..

Windows Defender does the same thing, except with data – or more specifically, packets of data. One of its jobs is to look at what is trying to get in and out of the computer from websites and emails, and decide whether that data is dangerous or not. If he considers the data acceptable, acceptable he lets them pass. Data that could be a threat to the stability of the computer or information about it is refused. It is a line of defense, just like a physical firewall is. physical This is how though a very simplistic explanation is on a very technical subject.

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