如果您无法从Internet下载文件或使用^(Internet)Firefox、Chrome、Edge、Opera、Internet Explorer或^{(Internet Explorer)}Windows 10/8/7上的其他浏览器保存或运行它；也就是说，当您单击链接下载文件时，没有任何反应，或者“另存为^{(Save As)}”对话框出现并迅速消失，那么这篇文章可能会对您有所帮助。

Internet Explorer 使用附件管理器通过识别文件类型和相应的安全设置来保护您免受不安全附件和Internet下载的影响。^(Internet)有时，由于某些原因，您可能会被禁止从Internet下载任何文件。原因可能多种多样。

无法从Internet下载文件^(Internet)

以下是您可能想要尝试的一些步骤（以任何顺序）来识别、排除故障和解决问题。

1]检查您的互联网连接^{(Internet connection)}并确保它处于工作状态。

2]使用磁盘清理工具^{(Disk Cleanup tool)}、CCleaner或内置浏览器 UI清除 Internet 缓存^{(Clear Internet Cache)}、临时文件^{(Temporary Files)}、Cookie^(Cookies)、历史记录^(History)等，重新启动计算机并重试。

3]选择不同的下载位置^{(different download location)}，看看是否有帮助。也许您的下载文件夹已损坏或有其他问题。

4]不要使用默认名称保存文件。将其保存为different file-type and/or choose a different name，看看这是否有帮助

5] 如果您使用的是下载管理器^{(Download Manager)}，请禁用它并查看它是否适合您。

6]如果您非常确定文件是安全的，请暂时禁用防火墙和/或您的防病毒或安全软件^{(disable Firewall and or your antivirus or security software)}，看看下载是否有效。

7] 您是否收到您当前的安全设置不允许下载此文件的消息？然后确保允许文件下载。^(File)

运行inetcpl.cpl打开Internet 选项^{(Internet Options)}并单击安全^(Security)选项卡。选择Internet区域并单击自定义^(Custom)级别按钮。

在安全设置^{(Security Settings)}中，向下滚动到下载^(Downloads)。将文件下载^{(File download)}设置为启用^(Enable)。向下滚动^(Scroll)一点，您将看到Miscellaneous。在此确保启动应用程序和不安全文件^{(Launching applications and unsafe files)}设置为提示^(Prompt)（推荐）。Click Apply/OK并退出^(Exit)。

如果这没有帮助，您可以通过单击“安全”选项卡下的“将所有区域重置为默认级别”来重置^{(Reset all zones to default level)}Internet 安全设置。^{(Internet Security)}

8] 要下载文件，Internet Explorer需要创建一个临时缓存文件。在Internet Explorer中，如果文件通过HTTPS传递，如果响应标头设置为防止缓存，并且如果设置了不将加密页面保存到磁盘^{(Do not save encrypted pages to disk)}选项，则不会创建缓存文件。在这种情况下，下载可能会失败并显示消息Internet Explorer 无法下载^{(Internet Explorer Cannot Download)}或文件无法下载^{(File couldn’t be downloaded)}。

9]大多数浏览器在完成下载后会启动您的防病毒程序来扫描文件。虽然不^(NOT)建议这样做，但如果您确定要下载的文件是安全的，您可以通过浏览器设置^{(browser settings)}暂时禁用此扫描功能。^{(may temporarily disable this scanning feature)}

您还可以通过编辑Windows 注册表^{(Windows Registry)}来禁用对下载文件的防病毒扫描。为此，运行regedit并按Enter打开注册表^(Registry)。导航^(Navigate)到以下键：

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments

如果您没有看到Attachments子键，请通过右键单击 Policies > New > Key > Type Attachments作为键名来创建它。接下来，右键单击Attachments >选择New > DWORD（32 位）。将值名称^{(Value Name)}指定^{(ScanWithAntiVirus)}为ScanWithAntiVirus并为其指定值1。

ScanWithAntiVirus注册表项值为：

• 1：将“关闭”或禁用扫描
• 2：可选扫描
• 3：将^(Will)在您完全打开或保存程序或文件后立即启用病毒扫描。

10 ] 最后——^{(] Finally –)}如果没有任何效果，唯一可以尝试的选择是将浏览器设置重置^{(reset browser settings)}为默认值。这些帖子将对您有所帮助：Reset Edge  | 重置铬^{(Reset Chrome)}| 重置火狐。

请注意，上述某些步骤可能会降低您的计算机安全性。因此，只有在您非常确定您计划下载的文件是安全的情况下才执行它们。完成工作后，请记住将设置更改回来。^{(Do note that some of the steps mentioned above may make your computer less secure. So carry them out only if you are very sure, that the file you are planning to download is safe. Once your work is done, remember to change the settings back.)}

请^(Please)让我们知道是否对您有用或您有任何其他想法。

Cannot download a file from the Internet? Do this!

If you cannot download a file from the Intеrnet or save or run it using Fіrefox, Chrome, Edge, Opera, Internet Explorer or other browsers on Windows 10/8/7; that is, when you click a link to download a file, nothing happens, or the Save As dialog box appears and quickly disappearѕ, then this post may be able to help you.

Internet Explorer uses the Attachment Manager to protect you against unsafe attachments and Internet downloads by identifying the file type and the respective security settings. Sometimes, due to some reasons, you may be just disallowed from downloading any files from the Internet. The causes could be varied.

Cannot download a file from the Internet

Here are a few steps you may want to try – in any order – to identify, troubleshoot, and resolve the problem.

1] Check your Internet connection and ensure that it is in working condition.

2] Clear Internet Cache, Temporary Files, Cookies, History, etc, using the Disk Cleanup tool, CCleaner, or the built-in browser UI, restart your computer and try again.

3] Choose a different download location and see if that helps. Maybe your download folder has become corrupted or has some other problem.

4] Do not use the default name for saving the file. Save it as a different file-type and/or choose a different name and see if this helps

5] If you are using a Download Manager, disable it and see if that works for you.

6] If you are very sure that the file is safe, disable Firewall and or your antivirus or security software temporarily and see if the download works.

7] Do you receive a Your current security settings do not allow this file to be downloaded message? Then ensure that File downloads are allowed.

Run inetcpl.cpl to open Internet Options and click the Security tab. Select the Internet zone and click on the Custom level button.

In Security Settings, scroll down to Downloads. Set File download to Enable. Scroll down a bit more and you will see Miscellaneous. Here make sure that Launching applications and unsafe files is set to Prompt (recommended). Click Apply/OK and Exit.

If this does not help, you can reset Internet Security settings by clicking on Reset all zones to default level under Security tab.

8] To download files, Internet Explorer needs to create a  temporary cache file. In Internet Explorer, if the file is delivered over HTTPS, if response headers are set to prevent caching, and if the Do not save encrypted pages to disk option is set, a cache file is not created. In such a case, the download may fail with the message Internet Explorer Cannot Download or File couldn’t be downloaded.

9] Most browsers launch your antivirus program to scan files when they finish downloading. While NOT advisable, you may temporarily disable this scanning feature via your browser settings, if you are sure that the file to be downloaded is safe.

You can also disable antivirus scanning of your downloaded files by editing the Windows Registry. To do this, Run regedit and hit Enter to open the Registry. Navigate to the following key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments

If you do not see the Attachments subkey, create it by right-clicking Policies > New > Key > Type Attachments as the key name. Next, right-click Attachments > select New > DWORD (32-bit). Give Value Name as ScanWithAntiVirus and give it a value 1.

ScanWithAntiVirus registry key values are:

• 1: Will ‘Off’ or disable the scan
• 2: Optional scan
• 3: Will enable the virus scan right after you completely open or save the program or file.

10] Finally – if nothing works, the only option that is left to try is to reset browser settings to default. These posts will help you: Reset Edge | Reset Chrome | Reset Firefox.

Do note that some of the steps mentioned above may make your computer less secure. So carry them out only if you are very sure, that the file you are planning to download is safe. Once your work is done, remember to change the settings back.

Please let us know if anything worked for you or if you have any other ideas.

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