Warning: The retired, out-of-support Internet Explorer 11 desktop application has been permanently disabled through a Microsoft Edge update on certain versions of Windows 10. For more information, see Internet Explorer 11 desktop app retirement FAQ.
Symptoms
When you download a file or a program in Internet Explorer 11, the file download may fail. In that case, you may receive one of the following error messages:
This file couldn't be downloaded.
This program couldn't be downloaded.
Resolution
Update information
To resolve this issue, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update. For technical information about the most recent cumulative security update for Internet Explorer, go to the following Microsoft website:
http://www.microsoft.com/technet/security/current.aspxNote This update was first included in security update 2909921. For more information about security update 2909921, click the following article number to view the article in the Microsoft Knowledge Base:
2909921 MS14-010: Cumulative security update for Internet Explorer: February 11, 2014
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
See the terminology that Microsoft uses to describe software updates.