microsoft defender smartscreen prevented an unrecognised app from starting

If you trust the Revive developer, trust Github, and trust that the Revive developer's account isn't compromised by an attacker, (and we all do!), then it's safe to install.

If I right-click on the installer and choose Properties I note the following: Our installer is signed. Running this app might put your PC at risk. The warning when you download an unsigned installer is a good reminder that you're installing software from Some Random Dude, and offers you no guarantees that it hasn't been tampered with. Windows Defender SmartScreen prevented an unrecognized app from starting. They've struck a good balance of safety vs. If Microsoft finds out someone is codesigning a virus, they just revoke the certificate and that prevents anyone from installing the virus. Under the sub-heading Check apps and files, select the Off button. It's a bit of a pain in the ass to do (costs like $200 for a certificate to let you do that), which is why a lot of hobby projects don't do it and you end up seeing that SmartScreen warning.Ī codesigned installer gives you a stronger guarantee that the file actually came from the developer and is not tampered with. In the Creators Update, Open Windows Defender Security Center and click App & browser control.

Under the General tab, select the checkbox next to the Security message: 'This file came from another computer and might be blocked to help protect this computer.' Click OK. You get this warning because the Revive developer didn't 'codesign' the installer. If this is confirmed, you can unblock the application by doing the following: Right-click on the file and select from the context menu that appears.

Microsoft defender smartscreen prevented an unrecognised app from starting