Install on Windows

1. Download the installer from the Download page.
2. Open the file, then follow the installer.
3. On first launch, Diktun asks to be linked to your account.

Windows shows a warning, and that is expected. Having software certified by Microsoft costs several hundred euros a year, and it has not been done yet. Windows is not saying the file is dangerous: it is saying it has not seen it before.

1. Click "More info".
2. Then "Run anyway".

There is a second message, and it is not the same one: "Smart App Control". That one blocks for good, with no button to go through, because it only accepts signed software. It is only switched on for some Windows 11 machines installed from scratch.

1. Settings, Privacy and security, Windows Security, App and browser control.
2. Open "Smart App Control settings" and set it to Off.
3. Install Diktun, then switch the setting back on.

Check that Windows is up to date first. On builds older than March 2026, this setting cannot be switched back on without reinstalling the system.