http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspxPerhaps the most commonly encountered problem with USB devices is enumeration failure. If a USB device fails to enumerate successfully it will appear in Device Manager with a problem code of 43, and will be listed as an “Unknown Device” If Windows wasen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspx#10375734Sat, 08 Dec 2012 04:21:44 GMT91d46819-8472-40ad-a661-2c78acb4018c:10375734AndrewW<p>This is very annoying I am unable to get to my tower usb ports easily so eveytime this issue happens. Which is almost everyday I have to reboot the machine because I have no mouse or keyboard or &nbsp;unplug the usb devices at the back of the machine.</p> <p>my hardware is not old. its an i3 cpu and asus board.. this really isn&#39;t good enough.. </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10375734" width="1" height="1">http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspx#10362517Wed, 24 Oct 2012 21:52:49 GMT91d46819-8472-40ad-a661-2c78acb4018c:10362517USB Blog<p>The manufacturer needs to update the firmware to support or stall the SET_SEL request, which is used for power management and required by the USB 3.0 specification. More info in this blog post: <a rel="nofollow" target="_new" href="http://blogs.msdn.com/b/usbcoreblog/archive/2012/07/13/common-issues-in-usb-3-0-devices.aspx">blogs.msdn.com/.../common-issues-in-usb-3-0-devices.aspx</a></p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10362517" width="1" height="1">http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspx#10362470Wed, 24 Oct 2012 19:52:38 GMT91d46819-8472-40ad-a661-2c78acb4018c:10362470Thomas<p>Same error as Pete: The USB set SEL request failed. Code 10</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10362470" width="1" height="1">http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspx#10354499Sun, 30 Sep 2012 04:05:39 GMT91d46819-8472-40ad-a661-2c78acb4018c:10354499Pete<p>What is &quot;The USB set SEL request failed&quot;? How do you fix it or how do you avoid this error?</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10354499" width="1" height="1">http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspx#10318964Tue, 12 Jun 2012 16:51:50 GMT91d46819-8472-40ad-a661-2c78acb4018c:10318964Kalle Olavi Niemitalo<p>Is there a DEVPROPKEY for reading the problem description via SetupDiGetDeviceProperty? &nbsp;I guess DEVPKEY_Device_ProblemCode is not it, because the screen shot still indicates Code 43.</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10318964" width="1" height="1">http://blogs.msdn.com/b/usbcoreblog/archive/2012/06/08/new-for-windows-8-problem-descriptions-for-usb-devices-and-hubs-in-device-manager.aspx#10317842Sat, 09 Jun 2012 11:50:41 GMT91d46819-8472-40ad-a661-2c78acb4018c:10317842xpclient<p>For a mass storage device that has been prepared for &quot;Safe removal&quot; but not yet removed from the computer, the device should not show at all in Device Manager at all once it is safely removed. Showing it with a yellow exclamation mark and telling the user &quot;To fix this problem, unplug the device and then plug it again&quot; is wrong, not an optimal UX.</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10317842" width="1" height="1">