Fixes an issue in which a downstream USB 3.0 hub is indefinitely powered on and then off in Windows 8. This issue occurs after you connect a broken device to the hub.

This problem occurs because the USB Enhanced Host Controller is supposed to issue an interrupt to cancel the pending asynchronous transfer. However, the unresponsive controller never sends out the interrupt, and a Stop error occurs.

Symptoms. When you have a computer that has the High Precision Event Timer (HPET) hardware timer and Windows 8.1 installed, you encounter a 0x9F Stop error from the Usbhub.sys driver. Cause. This issue occurs because both the HPET hardware timer and the hardware itself update certain registers at the same time, and this leads to a race condition.

Workaround. Try these methods to work around this problem. Method 1 Disable and enable the USB root hub. Use Device Manager to disable and re-enable the USB root. This lets the controllers recover the USB port from its unresponsive condition. To disable and re-enable the USB root, follow these steps: Click Start, and then click Run.

Fixes an issue in which SFC integrity scan always reports and fixes an error in the usbhub.sys.mui file after update 3125574 is installed in Windows 7 SP1 or Windows Server 2008 R2 SP1.

Sigurno uklonite USB uređaj iz USB priključka. Isti USB uređaj ili drugi USB uređaj ponovno povezujete s istim USB priključkom na koncentratoru. U tom scenariju računalo ne prepoznaje USB uređaj. Napomena Taj problem utječe na USB 2.0 koncentratore i komponente USB 2.0 u USB 3.0 koncentratorima.

מאפייני הבעיה. נניח כי להתחבר לרכזת USB 3.0 היציאה במורד הזרם של הרכזת USB 3.0 במחשב שבו פועל Windows 8. לאחר מכן, אתה מחבר התקן מנותק רכזת USB 3.0 במורד הזרם. כאשר ההתקן גורם תנאי overcurrent, 3.0 USB במורד הזרם hub ...

This article describes an issue that occurs when two USB devices are connected to a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. An update is available to resolve this issue. Before you install this update, check out the Prerequisites section.

Máte počítač se systémem Windows 8 nebo Windows Server 2012. Universal serial bus (USB) 2.0 má počítač port s s řízenou USB 2.0 Link Power Management (LPM) povolena. Připojíte USB 3.0 zařízení k portu USB 2.0. V tomto scénáři zařízení USB 3.0 nebude pracovat správně.

Rešava problem zbog kog računar koji radi pod operativnim sistemima Windows 8.1, Windows Server 2012 R2, Windows 8 ili Windows Server 2012 ne otkriva USB uređaj koji je povezan sa USB portom. Do ovog problema dolazi kada bezbedno uklonite USB uređaj iz istog UBS porta.