This app is not code-signed with a commercial certificate yet, so the first time you run it Windows may show a precautionary security warning. It is not a virus — follow the steps below and it installs normally.
① Blue screen "Windows protected your PC" (most common)
⚠ Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognized app from starting…
1Click the small More info link inside the dialog. — The Run button is hidden until you click this.
2Press the Run anyway button that appears below.
3When the setup wizard opens, continue with Next → Install.
② "User Account Control (UAC)" prompt
1On "Do you want to allow this app to make changes to your device?", click Yes. Installation requires administrator rights.
③ The downloaded file shows as "blocked"
1Right-click the downloaded NineFoldBridge-Setup.exe → Properties.
2At the bottom, check Unblock → OK → run it again.
④ Browser or antivirus blocks the download
1In the browser (Edge/Chrome) download bar, open the … menu → Keep.
2If antivirus quarantines it, restore/allow it from quarantine and run again. This is a false positive on an unsigned installer and is safe.
If it still won't install, take a screenshot of the message and send it to
contact@ninefoldtech.com — we'll help right away. · Windows 10/11 64-bit only