In these days of elevated numbers of cyber threats and cybercrimes, it has become extremely important to use a firewall on your computer. Whenever your computer is connected to the Internet or even any other network, it is prone to attacks through unauthorized access. Therefore, your Windows computer has a built-in security system, known as Windows防火牆, in order to protect you against any unauthorized access of your computer by filtering out any unwanted or harmful information entering your system and blocking potentially harmful apps. Windows allows its own apps through a firewall by default. This means that the firewall has an exception for these particular apps and will allow them to communicate with the Internet.
When you install a new app, the app adds its exception to the firewall in order to access the network. Therefore, Windows asks you if it is safe to do so through the ‘Windows Security Alert’ prompt.
However, sometimes you need to add an exception to the firewall manually in case it hasn’t been done automatically. You might also need to do so for apps that you had denied such permissions previously. Similarly, you may want to remove an exception from the firewall manually in order to prevent an app from accessing the Internet. In this article, we will discuss how to block or allow apps through the Windows Firewall.
Windows 10: Allow or Block Apps through Firewall
確保建立一個還原點,以防出現問題。
Method 1: How to Allow Apps in Windows 10 Firewall
To manually allow a trusted app through the firewall using settings:
1。點擊 齒輪圖標 in the Start menu or press Windows Key + I to open Window Settings.
2.點擊 '網絡與互聯網“。
3.Switch to the ‘Status' 標籤。
4.Under ‘更改您的網絡設置’ section, click on ‘Windows防火牆“。
5.The ‘Windows Defender安全中心’ window will open.
6.Switch to the ‘防火牆和網絡保護' 標籤。
7.點擊 '允許應用通過防火牆’. The ‘允許的應用’ window will open.
8.If you can’t reach this window, or if you are also using some other firewall, then you can open the ‘Windows Defender防火牆’ window directly using the search field on your taskbar and then 點擊 “允許通過Windows Defender防火牆使用應用程序或功能“。
9.Click on the ‘更改設置’ button in the new window.
10.Find the app that you want to allow on the list.
11.Check the relevant 複選框 against the app. Choose ‘私人的' 至 allow the app to access a private home or work network. 選擇'評價' 至 allow the app access to a public network.
12.If you can’t find your app in the list, click on ‘允許另一個應用程式...’. Further, click on the ‘瀏覽’ button and browse the app you want. Click on the ‘加入'按鈕。
13.點擊 'OK’ to confirm settings.
To allow a trusted app through the firewall using the command prompt,
1.In the search field located on your taskbar, type 指令
2.按 Ctrl + Shift + Enter to open an elevated command prompt.
3.Now type the following command in the window and press Enter:
netsh advfirewall firewall add rule name="應用名稱" dir=in action=allow program="app_path/app.exe" enable=yes
注意: Replace the app name and path with the relevant one.
Method 2: How to Block Apps in Windows 10 Firewall
To block an app in Windows Firewall using settings,
1.Open the ‘Windows defender security center’ window by following the same steps as we did above in order to allow an app through the firewall.
2.In the ‘防火牆和網絡保護’ tab, click on ‘Apply an app through firewall“。
3.點擊 '更改設置“。
4.Find the app you need to block in the list 和 uncheck the checkboxes against it.
5.You can also completely remove the app from the list by selecting the app and clicking on the ‘清除'按鈕。
6.Click on the ‘OK’ button to confirm.
To remove an app in firewall using the command prompt,
1.In the search field located on your taskbar, type 指令
2.按 Ctrl + Shift + Enter to open an elevated command prompt.
3.Now type the following command in the window and press Enter:
netsh advfirewall firewall add rule name="應用名稱" dir=in action=block program="app_path/app.exe" enable=yes
注意: Replace the app name and path with the relevant one.
推薦:
Using the above methods you can easily Allow or Block Apps in Windows Firewall. Alternatively, you can also use a third-party app like 一鍵防火牆 to do the same even more easily.