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---
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layout: post
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title: "Fix Unrecognized Installer Warning"
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download: false
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---
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<p>Our previous code signing certificate expired, and our new certificate is not yet recognized by Windows Defender SmartScreen.
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SmartScreen is reputation based, so once we have enough successful installations, SmartScreen will automatically recognize
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Open Live Writer. Until then, however, you may get a warning when you download and run the installer.</p>
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<p>This tutorial shows you how to complete the installation until SmartScreen begins to recognize us.</p>
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<p>Note that this application is also available on Windows 10 via the Windows Store. The latest update has been submitted
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to the store and is currently in the certification process.</p>
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<p>You can read more about SmartScreen in the following locations:</p>
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<ul>
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<li>
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<a href="https://docs.microsoft.com/en-us/windows/threat-protection/windows-defender-smartscreen/windows-defender-smartscreen-overview">Windows Defender SmartScreen</a>
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overview on docs.microsoft.com.
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</li><li>
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<a href="https://feedback.smartscreen.microsoft.com/smartscreenfaq.aspx">Windows Defender SmartScreen Frequently Asked Questions</a>
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(see questions "How should I decide whether to run a program flagged by Windows Defender SmartScreen as ‘not commonly downloaded’?" and
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"How can I download files reported as unsafe by Windows Defender SmartScreen in Internet Explorer 10?").
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</li><li>
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<a href="https://blogs.msdn.microsoft.com/ie/2011/05/17/smartscreen-application-reputation-in-ie9/">SmartScreen® Application Reputation in IE9</a>
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from the Internet Explorer Team Blog post announcing SmartScreen back in 2011.
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</ul>
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<p><i>Note: One possibility to immediately gain reputataion is to use and EV (Extended Validation) code signing certificate.
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In the case of Open Live Writer, we've recently done some work to code sign every software build, including nightly releases.
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EV Certificates won't work with our code signing infrastructure. Since this is a temporary issue for the new certificate,
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and we really want to have automated signed builds (for speedy future releases, signed nightly releases for beta testers, etc.)
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we've decided to not to go with an EV cert for now.</i></p>
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<h3>Steps for installing Open Live Writer if you receive SmartScreen warnings</h3>
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<ol>
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<li>
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If you download via Edge or Internet Explorer, you may receive a warning indicating that the installer is not commonly downloaded
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as shown below. If so, you can still view the download by clicking "View Downloads" or run it by clicking "Run". You may choose to
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download the application and view the digital signature. You can do that by right clicking, selecting Properties and selecting the
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Digital Signatures tab.
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<br/>
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<img src="images/not-commonly-downloaded.png" />
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</li><li>
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When you run the installer, you may see a prompt that only has a "Don't Run" button. Click on the "More info" link below the warning text.
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<br/>
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<img src="images/windows-protected-your-pc.png" />
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</li><li>
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Verify that the Publisher information shown in the "More info" text shows that the application is signed by the .NET Foundation
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as shown below, then click the "Run anyway" button.<br/>
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<img src="images/verify-and-run.png" />
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</li>
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</ol>

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