如果您的计算机上安装了 Avast Antivirus软件，您必须知道Web Shield是该软件不可分割的一部分。Avast Web Shield扫描您的 PC 通过 Internet 接收的所有数据，即从在线浏览到下载的所有数据。这就是它阻止恶意软件和间谍软件被访问和下载的方式。
Avast Web Shield应始终在您的台式机/笔记本电脑上启用，尤其是当它经常连接到 Internet 时。但是，如果您因为Avast Web Shield无法打开而无法运行，请不要担心。通读本文以了解如何修复 Avast web Shield 不会继续存在问题。(how to fix the Avast web Shield won’t stay on issue.)
如何修复 Avast Web Shield 无法打开(How to Fix Avast Web Shield Won’t Turn on)
为什么 Avast Web Shield 没有打开？(Why is Avast Web Shield not turning on?)
导致此问题的原因可能有很多。下面列出了一些关于Avast Web Shield无法在Windows系统中打开的常见原因：
- 安装的Avast(Avast)版本和系统操作系统不兼容
- Web Shield已手动关闭
- (Malware)Avast应用程序中的恶意软件或错误
下面解释了可用于修复Avast Web Shield无法打开问题的方法。虽然，在您实施任何步骤之前，必须执行一些初步检查。
预备步骤(Preliminary step)
您应该重新启动计算机(restart your computer)以刷新Windows操作系统并清除其中存储的不需要的临时数据。
1. 按Windows 键(Windows key)。
2. 转到 Start menu > Power > Restart，如下所示。
3. 等待您的 PC 重新启动。
现在您可以尝试下面列出的任何解决方案来解决上述问题。
方法一：重启 Avast Antivirus 服务(Method 1: Restart Avast Antivirus Service)
只有当Windows 操作系统(Windows OS)允许其服务运行时，该软件才能在您的 PC上运行。如果程序服务运行不顺畅，则程序无法正常运行。因此，由于Avast Antivirus服务出现问题，可能会出现“Avast Web Shield 无法继续运行”问题。按照给定的步骤确保Avast Antivirus服务正在运行：
1.在Windows 搜索(Windows search)栏中键入Services ，然后从搜索结果中启动 Services 应用程序。(Services)为清楚起见，请参阅(Refer)下图。
2. 在服务窗口中，找到Avast Antivirus 服务。(Avast Antivirus service. )
注意：(Note:)所有服务均按字母顺序列出。
3. 接下来，右键单击Avast Antivirus服务并选择属性。(Properties. )下面给出的图像是其显示方式的示例。
4. 现在，检查服务状态(Service status)。如果状态为正在运行(Running)，请单击停止(Stop)。否则，跳过此步骤。
5. 然后，转到标题为启动类型(Startup type)的选项，然后从下拉菜单中选择自动。(Automatic)
6.如果出现提示，单击Yes确认(Confirm)用户帐户对话。(User Account Dialogue)
7. 最后，点击开始(Start)，然后点击确定(OK)。请参阅给定图片的突出显示部分。
8. 重新启动 Avast 以保存更改。
现在，检查您是否能够修复Avast Web Shield无法打开的问题。
注意：(Note:)当您单击Start时，您可能会收到错误 1079(error 1079)。如果你这样做，请阅读以下内容以修复它。
如何修复错误 1079(How to Fix Error 1079)
当您单击“服务(Service)属性(Properties)”窗口中的“开始(Start)”时，您可能会收到一条错误消息：Windows 无法在本地计算机上启动 Avast Antivirus 服务。(Windows could not start the Avast Antivirus Service on Local Computer. Error 1079: The account specified for this service differs from the account specified for other services running in the same process.)错误 1079：为此服务指定的帐户与为在同一进程中运行的其他服务指定的帐户不同。
请按照以下步骤修复此错误：
1.按照方法 1 的步骤 1-3( following steps 1-3 of Method 1.)导航到Avast Antivirus 服务属性(Avast Antivirus service Properties)窗口。
2. 这次，导航到“属性(Properties)”窗口中的“登录”(Log On)选项卡。在这里，单击Browse，如图所示。
3. 在标题为Enter the object name to select (examples):的文本字段下，输入您的帐户用户名(username)。
4.接下来，单击检查名称(Check names)，然后在找到您的用户名后单击确定(OK)，如下所示。
5.如果出现提示，请输入您的帐户密码。(password)
当您像之前所做的那样按下“开始(Start)”按钮时，您将不再收到错误 1079 。
另请阅读：(Also Read:) 如何从 Windows 10 中删除 Avast(How to Remove Avast from Windows 10)
方法 2：修复 Avast(Method 2: Repair Avast)
如果Avast Antivirus Service运行正常，但您会收到相同的错误，并且(Service)Avast应用程序本身可能存在问题。在这种情况下，我们将利用其名为Avast Repair(Avast Repair)的内置功能来执行基本故障排除并修复小问题。
运行 Avast Repair(Run Avast Repair)可能会修复Avast Web Shield无法打开的问题，如下所述：
1.在Windows 搜索(Windows search)栏中键入添加或删除程序，然后从搜索结果中启动它，如图所示。(Add or remove programs)
2. 现在，在突出显示的搜索此列表文本字段中键入( Search this list)Avast Antivirus 。
3.在搜索结果中单击Avast Antivirus ，然后选择(Avast Antivirus)修改(Modify)。为清楚起见，请参阅给定的图像。
4. 接下来，在出现的Avast 设置窗口(Avast setup window)中单击修复(Repair)。
5. 按照屏幕上的说明等待该过程完成。
修复完成后，启动Avast并检查Web Shield是否打开。如果问题仍然存在，请使用以下方法更新Avast防病毒软件。
方法 3：更新 Avast(Method 3: Update Avast)
Avast的Web Shield组件可能无法工作，因为Avast Antivirus应用程序尚未更新到最新版本。这可能会导致与Windows操作系统的兼容性问题。
您需要按照以下步骤更新Avast ：
1.通过在Windows 搜索(Windows search)栏中搜索找到Avast 。然后，通过单击它来启动它。
2. 接下来，单击Avast 用户界面中的更新选项卡。(Update)
3. 单击病毒定义(Virus Definitions)和程序(Program)旁边的更新(Update)图标。
4. 按照屏幕上的说明等待更新过程完成。
5. 更新完成后，重启电脑。(restart your PC.)
现在启动Avast并打开Web Shield。如果Avast Web Shield没有打开，问题仍然存在；您必须按照以下方法中的说明执行Avast Antivirus的全新安装。(Avast Antivirus)
另请阅读：(Also Read:) 修复 Avast Antivirus 中的病毒定义失败(Fix Virus Definition Failed in Avast Antivirus)
方法 4：重新安装 Avast(Method 4: Re-install Avast)
如果上述方法无法解决此问题，您需要执行全新安装或重新安装Avast。这样做会用正确的文件替换(Doing)Avast应用程序的损坏或丢失文件。这应该解决与Avast软件的所有冲突以及纠正Avast Web shield 无法打开的问题。
请按照以下步骤执行Avast Antivirus的全新安装(Clean Install)：
1. 首先，点击此链接(click on this link)安装Avast Uninstall Utility，如图所示。
2. 下载以上两个文件后，将Windows(Windows into Safe Mode.)启动到安全模式。(boot)
3. 进入安全模式(Safe Mode)后，运行Avast 卸载实用程序。(Avast Uninstall Utility. )
4.接下来，选择安装旧版 Avast Antivirus(old Avast Antivirus)的文件夹。
5. 最后，点击卸载(Uninstall)。
6.卸载Avast后，以(Avast)正常模式(Normal Mode)重新启动(Restart)Windows 。
7.单击此链接(Click on this link)，然后单击下载免费保护(Download Free Protection)以下载最新的Avast Antivirus应用程序，如下所示。
8.运行安装程序并安装 Avast Antivirus。(Run the installer and install Avast Antivirus.)
9. 启动 Avast 并打开Web Shield。
受到推崇的：(Recommended:)
我们希望本指南对您有所帮助，并且您能够修复 Avast Web Shield 不会一直存在(fix Avast Web Shield won’t stay)问题。让我们知道哪种方法最适合您。此外，如果您对本文有任何问题或建议，请随时将它们放在下面的评论部分。
How to Fix Avast Web Shield Won't Turn on
If you have Avast Antivirus softwаre installed on your computer, yoυ must know that the Web Shield іs an integral part of this software. The Avast Web Shield scans all the data that your РC receives over the internet i.e., everything from online browsing to downloading. That’s how it blocks malware and spуware from being accessed and dоwnloaded.
The Avast Web Shield should always be enabled on your desktop/laptop, especially if it’s connected to the internet often. But, if you cannot get it to run because the Avast Web Shield won’t turn on, do not worry. Read through this article to learn about how to fix the Avast web Shield won’t stay on issue.
How to Fix Avast Web Shield Won’t Turn on
Why is Avast Web Shield not turning on?
There could be numerous reasons that could lead to this problem. Listed below are a few common ones as to why Avast Web Shield won’t turn on in Windows systems:
- Incompatibility between installed Avast version & system OS
- Web Shield has been manually turned off
- Malware or bugs in the Avast application
The methods you can use to fix the Avast Web Shield won’t turn on issue are explained below. Although, before you implement any steps, it is essential to perform some preliminary checks.
Preliminary step
You should restart your computer to refresh the Windows operating system and get rid of the unwanted, temporary data stored in it.
1. Press the Windows key.
2. Go to Start menu > Power > Restart, as highlighted below.
3. Wait for your PC to restart.
Now you can try any of the solutions listed below to resolve the said issue.
Method 1: Restart Avast Antivirus Service
The software can only work on your PC when Windows OS allows its services to run. If a program service is not running smoothly, the program cannot function correctly. Therefore, the ‘Avast Web Shield won’t stay on’ issue may occur due to a problem with the Avast Antivirus service. Follow the given steps to ensure that the Avast Antivirus service is running:
1. Type Services in the Windows search bar and launch Services app from the search results. Refer to the image below for clarity.
2. In the Services window, find Avast Antivirus service.
Note: All the services are listed in alphabetical order.
3. Next, right-click on the Avast Antivirus service and select Properties. The image given below is an example of how it will be displayed.
4. Now, check the Service status. If the status states Running, click on Stop. Otherwise, skip this step.
5. Then, go to the option titled Startup type and select Automatic from the drop-down menu.
6. Confirm the User Account Dialogue by clicking on Yes, if prompted.
7. Lastly, click on Start and then click on OK. Refer to the highlighted sections of the given pic.
8. Restart Avast to save changes.
Now, check if you’re able to fix Avast Web Shield won’t turn on issue.
Note: You may receive error 1079 when you click on Start. If you do, read below to fix it.
How to Fix Error 1079
When you click on Start in the Service Properties window, you may receive an error which states: Windows could not start the Avast Antivirus Service on Local Computer. Error 1079: The account specified for this service differs from the account specified for other services running in the same process.
Follow the steps below to fix this error:
1. Navigate to Avast Antivirus service Properties window by following steps 1-3 of Method 1.
2. This time, navigate to Log On tab in the Properties window. Here, click on Browse, as shown.
3. Under the text field titled Enter the object name to select (examples):, type your account username.
4. Next, click on Check names and then click on OK once your username is located, as highlighted below.
5. Enter your account password if prompted.
You will no longer receive error 1079 when you press the Start button as you did earlier.
Also Read: How to Remove Avast from Windows 10
Method 2: Repair Avast
If the Avast Antivirus Service is running correctly and yet, you get the same error, and there might be an issue with the Avast application itself. In this case, we will utilize its built-in feature named, Avast Repair which performs basic troubleshooting and fixes minor issues.
Run Avast Repair to potentially fix the Avast Web Shield won’t turn on issue, as explained below:
1. Type Add or remove programs in the Windows search bar and launch it from the search results, as shown.
2. Now, type Avast Antivirus in the Search this list text field which is highlighted.
3. Click on Avast Antivirus in the search result, and select Modify. Refer given image for clarity.
4. Next, click on Repair in the Avast setup window that appears.
5. Follow the onscreen instructions and wait for the process to complete.
Once the repair is complete, launch Avast and check if the Web Shield is turning on. If the issue persists, move to the following method to update Avast antivirus.
Method 3: Update Avast
The Web Shield component of Avast may not be working because the Avast Antivirus application has not been updated to the latest version. This may lead to compatibility issues with the Windows operating system.
You need to update Avast by following these steps:
1. Find Avast by searching for it in the Windows search bar. Then, launch it by clicking on it.
2. Next, click on the Update tab in the Avast user interface.
3. Click on Update icons next to both Virus Definitions and Program.
4. Follow the onscreen instructions and wait for the update process to complete.
5. After the update is complete, restart your PC.
Now launch Avast and turn on the Web Shield. If the Avast Web Shield doesn’t turn on, the issue still appears; you will have to perform a clean install of Avast Antivirus as explained in the following method.
Also Read: Fix Virus Definition Failed in Avast Antivirus
Method 4: Re-install Avast
If the above-mentioned methods did not help fix this issue, you need to perform a clean install or re-installation of Avast. Doing so will replace corrupt or missing files of the Avast application with the proper ones. This should resolve all conflicts with the Avast software as well as rectify Avast Web shield won’t turn on issue.
Follow the steps written below to perform a Clean Install of Avast Antivirus:
1. First, click on this link to install the Avast Uninstall Utility, as shown.
2. After you download the above two files, boot Windows into Safe Mode.
3. After you enter Safe Mode, run the Avast Uninstall Utility.
4. Next, select the folder where the old Avast Antivirus is installed.
5. Lastly, click on Uninstall.
6. After Avast has been uninstalled, Restart Windows in Normal Mode.
7. Click on this link and then click on Download Free Protection to download the latest Avast Antivirus application, as shown below.
8. Run the installer and install Avast Antivirus.
9. Launch Avast and turn on the Web Shield.
Recommended:
We hope this guide was helpful and you were able to fix Avast Web Shield won’t stay on issue. Let us know which method worked out the best for you. Also, if you have any questions or suggestions regarding this article, feel free to drop them in the comments section below.
