Member Avatar for Xozz

I'm trying to install Unreal Tournament 3 in Windows 11, but I get the message "Deze app is voor uw veiligheid geblokkeerd" which means "This app is blocked for your safety". What can I do?

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  • Latest Post Latest Post by lucyoscar

Dani AI

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Short diagnosis and where that Dutch message comes from: the installer is being stopped by Windows’ reputation/attachment checks (Smart App Control / SmartScreen and the “Mark‑of‑the‑Web” zone flag that browsers add to downloaded files). That block is about the file’s origin and reputation, not necessarily a broken installer—old game installers often trigger it because they’re unsigned or uncommon. (support.microsoft.com)

Practical, safe steps to try (in order): verify the EXE’s publisher via Properties → Digital Signatures and scan the file with your AV or VirusTotal; if it’s trustworthy remove the zone mark in Explorer (right‑click → Properties → check Unblock) or use PowerShell to remove the Zone.Identifier stream. The PowerShell command is simple:

Unblock-File -Path "C:\Path\To\UT3Installer.exe"

If the SmartScreen dialog appears you can expand “More info” and use “Run anyway” for a one‑time override (keep SmartScreen enabled otherwise). If the file still won’t run, that usually means stricter policy (WDAC/Group Policy) or a corrupted file—the system logs will show the reason. (learn.microsoft.com)

UT3 specifics and follow‑ups: older Unreal installers can also fail for compatibility (resolution/DPI, missing legacy DirectX/redistributables) or need community fixes (widescreen/FOV and multiplayer patches). Check up‑to‑date community compatibility notes and unofficial patches for UT3 before changing system settings; they document common fixes for modern GPUs and high‑DPI displays. If this is a managed PC, the block may be policy‑enforced and IT must change it. (References: Windows security docs and community game compatibility writeups.) (support.microsoft.com)

Notes: this builds on ’s SmartScreen pointer and the troubleshooting direction started by ; it supplements those replies with the unblock/PowerShell steps and game‑specific compatibility references.

Recommended Answers

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Member Avatar for rproffitt

I know many don't like that but there are two answers.

  1. Be sure you have admin account rights.
  2. Back to the maker/author to lodge a bug report.
Member Avatar for ivy.inc.Hugh

You can allow the SmartScreen

Member Avatar for lucyoscar

To access the storefront on your Windows 11 PC, click the Microsoft Store icon in the taskbar. To see a list of available apps, both free and premium, click the Apps button in the left sidebar. To browse the available free and paid games for download, click the gaming button on the left and scroll down the page.

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