http://blogs.msdn.com/b/ntdebugging/archive/2011/08/05/for-testing-purposes-only-and-other-desktop-watermarks.aspxHi all, Matt here again. &#160; One of our team’s main functions is to work with our development teams to create hotfixes when customers run into issues that can only be resolved through a code change. &#160; The developers will often prepare a privateen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/ntdebugging/archive/2011/08/05/for-testing-purposes-only-and-other-desktop-watermarks.aspx#10194913Thu, 11 Aug 2011 16:34:53 GMT91d46819-8472-40ad-a661-2c78acb4018c:10194913Joshua<p>&quot;Test Mode&quot; may also mean a local build of TrueCrypt is installed.</p> <p>[That makes sense as TrueCrypt requires a kernel-mode driver, so test signing would need to be enabled to load a driver that has been <a href="http://msdn.microsoft.com/en-us/library/ff552275(v=VS.85).aspx">self-signed</a> during the build process. &nbsp;&nbsp;To load a driver with test signing disabled, the driver needs to be signed by a <a href="http://msdn.microsoft.com/en-us/library/ff552289(v=VS.85).aspx">public certificate authority</a>. See our <a href="http://msdn.microsoft.com/en-us/library/ff548231(v=VS.85).aspx">kernel mode signing policy</a> for more information.]</p><div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10194913" width="1" height="1">http://blogs.msdn.com/b/ntdebugging/archive/2011/08/05/for-testing-purposes-only-and-other-desktop-watermarks.aspx#10194394Wed, 10 Aug 2011 09:22:20 GMT91d46819-8472-40ad-a661-2c78acb4018c:10194394VinceG<p>Very informative Matt. If I ever have to raise an issue with Microsoft I&#39;ll be a lot more confident about whats going on.</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10194394" width="1" height="1">