当SmartScreen 功能(SmartScreen feature)无法扫描文件内容时，Windows 会出现“现在无法访问 SmartScreen”错误。您可能正在尝试安装应用程序，并且由于您的电脑的安全功能无法检查您的文件是否安全，因此您会收到上述错误消息。您可以使用多种方法在您的电脑上修复此错误，我们将向您展示如何操作。
SmartScreen无法扫描您的文件，因为您的 Internet 连接无法正常工作、Microsoft 的服务器已关闭、您的 PC 出现小故障、您的VPN或代理服务器未按预期运行等等。
检查您的互联网连接是否有(Internet Connection Has)问题
当SmartScreen(SmartScreen)无法工作时，您的互联网连接是第一个要检查的项目。您的连接可能已停止工作，导致SmartScreen无法连接到互联网并检查您的文件是否安全。
在这种情况下，请通过打开计算机上的 Web 浏览器并启动网站来检查连接状态。如果您的互联网连接出现故障，您的网站将无法加载。在这种情况下，您必须在使用 SmartScreen 之前解决网络问题(resolve your network issues)。
您可以应用一些基本的故障排除技巧（例如断开并重新连接 Wi-Fi 网络以及重新启动路由器(rebooting your router)）来解决互联网问题。如果这些方法不起作用，最好
联系您的互联网服务提供商 ( ISP )。
检查微软的服务器是否宕机
SmartScreen无法工作的另一个原因是 Microsoft 的服务器已关闭。SmartScreen依赖这些服务器来检查您的文件是否安全，并且当所需服务器关闭时，该功能无法执行检查。
您可以前往DownDetector网站检查是否属于这种情况。该站点告诉您各种在线服务的在线状态，包括Microsoft .
如果你发现微软(Microsoft)的服务器宕机了，你就必须等到该公司修复服务器问题。当Microsoft恢复其服务器功能
后，您应该能够使用SmartScreen 。
重新启动您的 Windows 电脑
如果您的Windows PC 存在小故障，这可能就是您无法使用SmartScreen扫描文件的原因。解决电脑小问题的一种方法是重新启动电脑(restart your PC)。
重新启动计算机会关闭并重新打开所有系统功能，从而修复这些项目的许多小问题。
- 使用“开始(Start)”(Start)菜单图标或键盘上的
Windows键打开“开始”菜单。
- 选择菜单中的电源图标，然后选择(Power)重新启动(Restart)。
- 当计算机重新启动时启动您的文件。
在Windows(Your Windows) PC
上重新启用SmartScreen
您无法使用SmartScreen并收到错误消息，因为您或其他人可能已关闭电脑上的该功能。或者，该功能可能存在小错误。无论哪种方式，您都可以重新激活该功能来解决您的问题。
- 打开“开始”(Start)菜单，找到“Windows 安全”(Windows Security)，然后启动该应用程序。
- (Select App)在应用程序中
选择应用程序和浏览器控制。
- 选择(Choose)基于信誉的保护设置。
- 打开检查(Check)应用程序和文件、SmartScreen for Microsoft Edge、潜在(Potentially)不需要的应用程序阻止和SmartScreen for Microsoft Store应用程序选项。
- 启动您的文件并查看文件打开时是否没有错误。
禁用代理服务器和 VPN
您的VPN和代理服务器通过第三方服务器路由您的互联网流量。虽然此设置允许您绕过 ISP 的限制，但该设置有时最终会导致各种问题。您的“现在无法访问SmartScreen ”错误可能是由于使用(SmartScreen)VPN或代理造成的。
在这种情况下，请关闭电脑上的这两项服务，看看是否可以解决您的问题。您可以通过打开VPN应用程序并关闭主选项来
停用VPN服务。(VPN)
您可以按如下方式关闭代理服务器：
在 Windows 11 上
- 按Windows + I
打开“设置”。
- (Select Network)在左侧边栏中
选择网络和互联网。
- 在右侧窗格中选择代理。
- 停用自动(Automatically)检测设置选项。
- 选择“使用(Use)代理服务器”旁边的“设置(Set)” ，然后关闭“使用(Use)代理服务器”。
在 Windows 10 上
- 按Windows + I
启动设置。
- (Select Network)在“设置”中(Settings)选择“网络和Internet”。
- 在左侧边栏中选择代理。
- 关闭右侧的自动检测设置选项。(Automatically)
- 同时
禁用“使用代理服务器”选项。(Use)
(Run)在您的 Windows计算机上(Computer)运行防病毒(Antivirus Scan)扫描
如果您仍然无法安装应用程序并收到SmartScreen错误，则您的计算机可能感染了病毒或恶意软件。此类感染通常会导致许多随机问题，使您无法完成任务。
解决此问题的一种方法是运行完整的病毒扫描并删除计算机中的所有威胁(run a full virus scan and remove all the threats from your computer)。这可以清除您的计算机上的病毒和恶意软件，并让您以通常的方式安装应用程序。
- 在您的电脑上启动Windows 安全(Windows Security)应用程序。
- (Select Virus)在应用程序中
选择病毒和威胁防护。
- 在以下屏幕上选择扫描选项。(Scan)
- 选择完整(Select Full)扫描，然后选择底部的立即扫描。(Scan)
- 等待(Wait)防病毒软件扫描您的电脑并消除威胁。
干净启动您的 Windows PC
有时，您无法安装某个应用程序，因为您的电脑上安装的另一个应用程序造成了干扰。您的电脑可能有可疑的应用程序，阻止您启动当前的应用程序安装程序。
在这种情况下，您可以干净启动 Windows PC(clean boot your Windows PC)并尝试安装您的应用程序。当您进入此模式时，Windows 仅加载必要的文件，以便您查找第三方应用程序是否造成干扰。
如果您的应用程序在该Windows(Windows)模式下正常打开，请从您的计算机中查找并删除任何可疑应用程序。
创建(Create)并使用(Use)新的 Windows 用户(New Windows User Account)帐户
如果您的 SmartScreen 问题仍未解决，您可以使用的最后一个修复方法是创建并使用新的Windows用户帐户来安装您的应用程序。您当前的帐户可能存在问题，从而导致您出现问题。
在 Windows 10 中设置新用户帐户(set up a new user account in Windows 10)很容易，在 Windows 11 中创建新帐户(make a new account in Windows 11)也同样容易。拥有新帐户后，请使用该帐户运行应用程序安装程序并安装应用程序。
解决“Windows SmartScreen 现在无法访问”错误的
多种方法(Ways)
Windows SmartScreen(Windows SmartScreen)由于各种原因停止工作，其中没有互联网连接是主要原因。如果多次尝试打开应用安装程序后仍(error even after trying to open your app installer multiple times)无法消除该错误，请使用上述方法来解决您的问题。
解决问题后，SmartScreen将扫描您的文件并告知您继续处理该文件是否安全。
How to Fix a “Windows SmartScreen can’t be reached right now” Error
Windows’ “SmartScreen can’t be reaсhed right now” error occurs when the SmartScreen feature fails to scan your file’s contents. You may be trying to install an app, and since your PC’s security feature can’t check whether your file is safe, you get the above error message. You can use a few ways to fix this error on your PC, and we’ll show you how.
SmartScreen can’t scan your file because your internet connection isn’t working, Microsoft’s servers are down, your PC has a minor glitch, your VPN or proxy server isn’t functioning as expected, and more.
Check if Your Internet Connection Has Issues
Your internet connection is the first item to check when SmartScreen fails to work. Your connection may have stopped working, preventing SmartScreen from connecting to the internet and finding out if your file is safe.
In this case, check your connection’s status by opening a web browser on your computer and launching a site. Your site will fail to load if your internet connection is faulty. In this case, you must resolve your network issues before using SmartScreen.
You can apply a few basic troubleshooting tips, like disconnecting and re-connecting to your Wi-Fi network and rebooting your router, to fix your internet problems. If these methods don’t work, contacting your internet service provider (ISP) is a good idea.
Check if Microsoft’s Servers Are Down
Another reason SmartScreen doesn’t work is that Microsoft’s servers are down. SmartScreen relies on those servers to check whether your file is safe, and the feature fails to perform the check when the required servers are down.
You can check if that’s the case by heading to the Downdetector site. This site tells you the online status of various online services, including Microsoft.
If you find that Microsoft’s servers are down, you’ll have to wait until the company fixes the server issues. You should be able to use SmartScreen when Microsoft has restored its server functionalities.
Restart Your Windows PC
If your Windows PC has a minor glitch, that may be why you can’t use SmartScreen to scan your files. One way to resolve your PC’s minor issues is to restart your PC.
Giving your computer a reboot turns off and back on all system features, fixing many minor issues with those items.
- Open the Start menu using the Start menu icon or the Windows key on your keyboard.
- Select the Power icon in the menu and choose Restart.
- Launch your file when your computer reboots.
Re-Enable SmartScreen on Your Windows PC
You can’t use SmartScreen and get an error message because you or someone else may have turned off the feature on your PC. Or, the feature may have a minor bug. Either way, you can re-activate the feature to fix your issue.
- Open the Start menu, find Windows Security, and launch the app.
- Select App & browser control in the app.
- Choose Reputation-based protection settings.
- Turn on the Check apps and files, SmartScreen for Microsoft Edge, Potentially unwanted app blocking, and SmartScreen for Microsoft Store apps options.
- Launch your file and see if the file opens without an error.
Disable Proxy Server and VPN
Your VPN and proxy server route your internet traffic via a third-party server. While this setup allows you to bypass your ISP’s restrictions, the setup sometimes ends up being the cause of various issues. Your “SmartScreen can’t be reached right now” error may be due to using a VPN or proxy.
In this case, turn off both services on your PC and see if that resolves your issue. You can deactivate your VPN service by opening your VPN app and toggling off the main option.
You can turn off your proxy server as follows:
On Windows 11
- Open Settings by pressing Windows + I.
- Select Network & internet in the left sidebar.
- Choose Proxy on the right pane.
- Deactivate the Automatically detect settings option.
- Select Set up next to Use a proxy server and toggle off Use a proxy server.
On Windows 10
- Launch Settings by pressing Windows + I.
- Select Network & Internet in Settings.
- Choose Proxy in the left sidebar.
- Turn off the Automatically detect settings option on the right.
- Disable the Use a proxy server option as well.
Run an Antivirus Scan on Your Windows Computer
If you still can’t install your app and get a SmartScreen error, your computer may be infected with a virus or malware. Such infections often cause many random issues, preventing you from working on your tasks.
One way to fix that is to run a full virus scan and remove all the threats from your computer. This rids your machine of viruses and malware and lets you install your apps the usual way.
- Launch the Windows Security app on your PC.
- Select Virus & threat protection in the app.
- Choose Scan options on the following screen.
- Select Full scan and choose Scan now at the bottom.
- Wait for the antivirus to scan your PC and remove threats.
Clean Boot Your Windows PC
Sometimes, you can’t install an app because another app installed on your PC is causing interference. Your PC may have a suspicious app preventing you from launching your current app installer.
In this case, you can clean boot your Windows PC and try to install your app. Windows only loads the essential files when you enter this mode, allowing you to find if third-party apps are causing interferences.
If your app opens fine in that Windows mode, find and remove any suspicious apps from your machine.
Create and Use a New Windows User Account
If your SmartScreen issue remains unresolved, the last fix you can use is to create and use a new Windows user account to install your app. Your current account may have issues, causing your problem.
It’s easy to set up a new user account in Windows 10, and it’s equally easy to make a new account in Windows 11. Once you have a new account, use that account to run your app installer and install your app.
Many Ways to Resolve “Windows SmartScreen can’t be reached right now” Error
The Windows SmartScreen stops working for various reasons, with not having internet connectivity being the main reason. If you can’t get rid of the error even after trying to open your app installer multiple times, use the methods outlined above to resolve your issue.
When you’ve fixed the problem, SmartScreen will scan your file and let you know if proceeding with the file is safe.
