Tag Archives: Usbhub.sys

Usbhub.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS 2011)

Usbhub.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS 2011)

11-Jan-2013 – 6.1.7601.22215 –  Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2798670 – USB audio stream stalls on a computer that is running Windows 7 or Windows Server 2008 R2

08-Aug-2012 – 6.1.7601.22081 –  Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2742516 – “Device has not been installed correctly” or “Device unplugged” error message when you connect a USB hub to a computer that is running Windows 7 or Windows Server 2008 R2

08-Aug-2012 – 6.1.7601.17924 –  Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2742516 – “Device has not been installed correctly” or “Device unplugged” error message when you connect a USB hub to a computer that is running Windows 7 or Windows Server 2008 R2

07-Mar-2012 – 6.1.7601.21937 –  Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2683549 – USB composite devices do not enter selective suspend mode after you resume a Windows 7 or Windows Server 2008 R2-based computer from sleep

07-Mar-2012 – 6.1.7601.17791 –  Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2683549 – USB composite devices do not enter selective suspend mode after you resume a Windows 7 or Windows Server 2008 R2-based computer from sleep

05-Nov-2011 – 6.1.7601.21855 – Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2621491 – USB hub stops working in Windows 7 if you click the mouse while the computer is entering sleep

21-Sep-2011 – 6.1.7601.21824 – Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2528984 – Functionality issues on USB devices that are connected to a Windows 7-based computer that has an Intel platform

09-Sep-2011 – 6.1.7601.21814 – Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2615763 – “0x000000D1” Stop error when you connect a USB composite device to a computer that is running Windows 7 or Windows Server 2008

25-Mar-2011 – 6.1.7601.21692 – Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2529073 – Binary files in some USB drivers are not updated after you install Windows 7 SP1 or Windows Server 2008 R2 SP1

03-Feb-2011 – 6.1.7601.21653 – Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2459268 – “0x0000009F” Stop error in Windows 7 or in Windows Server 2008 R2 when the computer enters or resumes from the Soft Off (S5) power state

18-Dec-2010 – 6.1.7601.21624 – Usbhub.sys – x86/x64 – http://support.microsoft.com/kb/2484031 – A USB audio device stops playing audio in Windows 7

Windows Vista and Windows 7 – USB Audio Device or USB Headset can cause High CPU Usage and you may notice skipping in the sound playback

If you use a USB Headset, USB Speakers or USB Sound Card under Windows Vista or Windows 7 you may notice that the CPU Usage is very high when you are listening to sound, music or gaming.  You may also notice that the audio lags or skips as a result, this will normally occur every 10-20 seconds and may get worse over an extended period of time.

This is most likely to occur when the device is connected to a USB 2.0 EHCI (Enhanced Host Controller Interface)

The issue is caused by a problem with the usbport.sys driver that is part of Windows

The issue can be addressed in Windows 7 or Windows Server 2008 R2 by upgrading to “Service Pack 1”

The issue can be addressed in Windows Vista – Service Pack 2 or Windows Server 2008 – Service Pack 2 by applying the hotfix from http://support.microsoft.com/kb/981214 which includes an updated version of usbport.sys