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<p>I&#8217;ve installed Windows 7 with integrated SP1 and when I tried to install a driver for my USB UPS device I got the following message:</p>
<p><span style="color: #003366;">Windows can&#8217;t verify the publisher of this driver software</span></p>
<p><b><img src="http://wincert.net/wp-content/uploads/2011/03/InstallAnyway.png" alt="" /><br />
</b></p>
<p>Well, this is not a new message as I&#8217;ve always clicked to Install this driver software anyway and I had no issues at all.</p>
<p><!--more--></p>
<p>Things seems to change a bit with SP1, because, no matter of my selection on above prompt, Windows prevented installation of this driver.</p>
<p>To resolve this issue I had to disable driver signing and enable the test mode.</p>
<p>Here&#8217;s how to do it:</p>
<p>Hit <strong>Windows ORB</strong> in your taskbar</p>
<p>Run <strong>CMD (Command Prompt)</strong> in elevated mode. (Right click | Run as Administrator)</p>
<p>NOTE: If you have UAC (User Account Control) enabled, you will get a prompt message. Select YES to continue.</p>
<p>Type the following two commands and hit Enter after each line.</p>
<p><strong>bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS</strong><br />
<strong> bcdedit.exe -set TESTSIGNING ON</strong></p>
<p>You will receive The operation completed successfully message for both commands.</p>
<p>Restart you computer for the changes to take effect.</p>
<p>Now, you should be able to install unsigned drivers on Windows 7 SP1.</p>
<p>If you&#8217;re like me, you might want to revert changes that we&#8217;ve just made after successful installation of unsigned drivers. To do so repeat the steps above and in the Command Prompt enter the following commands:</p>
<p><strong>bcdedit.exe -set loadoptions DENABLE_INTEGRITY_CHECKS</strong><br />
<strong> bcdedit.exe -set TESTSIGNING OFF</strong></p>
<p>Comments are welcome!</p>