As it turns out, several different causes might end up causing this problem:

Restoring the Internet Properties to the default

As it turns out, the most common causes that will eventually spawn the INET_E_DOWNLOAD_FAILIURE error is some type of network interruption that ends up stopping the exchange of data between the web server and your end-user machine. And as the majority of affected users have confirmed, this problem is most likely facilitated by an advanced Internet setting that ends up interfering with IE 11 or Edge. If this scenario is applicable, you should start this troubleshooting guide by resetting every advanced Internet setting – this will essentially return Internet Explorer or Microsoft Edge to the factory settings. Note: If you’re looking for a most focused approach, jump directly to the next fix below. If you want to go for this potential fix, start to follow the instructions below: In case the same problem is still occurring or this method did not apply to your particular scenario, move down to the next potential fix below.

Preventing the browser from saving encrypted pages

As it turns out, one of the most common advanced Internet settings that will cause this problem is an option that prevents Internet Explorer or Microsoft Edge to save encrypted pages to disk. This is a useful feature to have enabled, but in practice, a lot of users are reporting a glitch that ultimately ends triggering the INET_E_DOWNLOAD_FAILIURE. You can fix this issue (without resetting your entire suite of advanced Internet settings) by preventing IE 11 or Microsoft Edge to avoid saving encrypted pages to disk. If you want to attempt this fix, follow the instructions below: In case you’re still stuck with the same error code when accessing certain URLs, move down to the next potential fix below.

Enable Loopback in Microsoft Edge (if applicable)

If you’re encountering this issue with Microsoft Edge, chances are you’re dealing with a network isolation issue. In most cases, this issue occurs because network isolation is enabled by default (different from IE). If this scenario is applicable, you should be able to fix the issue by enabling loopback and debugging the localhost server via a series of commands from an elevated CMD prompt. To do this, follow the instructions below: In case you still end up seeing the INET_E_DOWNLOAD_FAILIURE error when trying to visit certain websites, move down to the next potential fix below.

Restoring IE to a clean state (if applicable)

In case you’re encountering this problem with a version of Internet Explorer, it might be time to reset it to a clean state. This browser’s inability to clean itself effectively is one of the main reasons why it hasn’t been adopted by a wider audience. If this scenario is applicable and you insist on using IE, you will need to uninstall and reinstall the browser to resolve the INET_E_DOWNLOAD_FAILIURE. But keep in mind that since Internet Explorer is part of Windows, you will not be able to uninstall and reinstall conventionally – You will need to disable this built-in component from Windows features, restart your computer and enable it again to restore IE to a clean state. If you are prepared to go this route, follow the instructions below: In case the problem is persisting, move down to the next potential fix below.

Repairing or Reset Microsoft Edge (if applicable)

In case you’re encountering the issue with Microsoft Edge, you’re likely dealing with a case of abusing the State Repository service. In severe cases, this problem might end up inhibiting Edge’s ability to establish connections with certain web servers. If this scenario is applicable, you should attempt to repair your Edge browser and if this doesn’t resolve the issue, reset it to remove any temporary files. These two methods have been confirmed to be effective by a lot of affected users. Here’s a quick guide on repairing or resetting Microsoft Edge to fix the INET_E_DOWNLOAD_FAILIURE error: In case this fix didn’t apply to your current situation or the problem is still not resolved, move down to the next potential fix.

Performing a Repair install (in-place repair)

If none of the fixes above have worked for you, it’s pretty clear that the problem in your cases is facilitated by some type of system file corruption that cannot be resolved conventionally. In this case, the last result would be to reset every Windows component  (including boot related data). Keep in mind that this doesn’t necessarily mean that you will lose your personal data. Windows 8.1 and Windows 10 offers the option to repair install (in place repair), which would be the preferred approach in this case. Performing a repair install will allow you to reset every Windows component while allowing you to keep your data present on your OS drive including documents, media, and even applications and games. But keep in mind that you’ll likely need a compatible installation media to complete this operation (not required on Windows 10). If you don’t care about data loss and you want to reset your computer as quick and as easy as possible, go for a clean install instead.

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