How to Block Application (exe) Downloads

Blocking the Installation of New Programs and Games

Blocking exe downloads can be used to prevent installation of new applications or games and can also be helpful in protecting against malicious programs and files.
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Blocking by File Type

To Block exe downloads open "Monitoring Settings", go to "Content Types" under "Internet" and check "Block exe files". This blocks the download of all installers including (.msi files) as well as all standalone exes and portable applications.
This blocks all "binary stream" file types. Which is more effective in blocking all exe downloads but can also block some video streaming services.
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Blocking exe files downloads
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Blocking exe downloads. (Click to enlarge)
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Trying to download any exe application now results in this mysterious error message:
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Blocking exe files downloads
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Steam application download blocked.
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If it is important to explain to users that an application was blocked on purpose you can turn off Stealth Mode in HomeGuard's monitoring settings >> Basic Settings and a clear message informing users that HomeGuard just blocked a download will be shown to the user.
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Blocking Files by Extension

Another (less effective) way to block exe downloads by HomeGuard is to add ".exe" and ".msi" (without quotes) to the list of blocked websites in "Monitoring Settings" >> "Websites". This is less effective because sometimes the URL of the exe file doesn't contain a file extension and thus it won't be recognized as an executable file.
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Blocking exe downloads
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Blocking exe downloads by file extension. (Click to enlarge)