Description
This download fixes several USB driver problems in Windows XP SP1. Here are some of the troubles it fixes:
Your computer automatically restarts instead of resuming from hibernation, or you receive a serious error (STOP 0x000000A in Usbport.sys).
Good luck understanding this error, but at least its fixed. Quoted here from Microsoft 'Your USB 2.0 controller does not enter the selective suspend mode. Because of this behaviour, your processor cannot enter a C3 (Clock-Stopped) power state after you disconnect a device from the USB 2.0 hub that is connected to a USB EHCI controller.' Hmm.
USB device drivers can selectively shut down their devices when they detect that the devices are idle. When you use the device again (for example, you move a USB mouse), the driver turns the device back on. This is particularly important for the power management of mobile computers.
Your USB device does not work after you resume from an S1 or S3 power state. When this behaviour occurs, your computer may stop responding (hang/crash) when it restarts.
You may not be able to use your USB mouse (or wake your computer with the USB mouse) after you suspend or hibernate your computer while you are continuously moving the USB mouse.
Your computer may automatically restart, or you may receive a serious error (STOP 0x0000007E in Usbhub.sys) when you use the Safely Remove Hardware utility (doesn't sound very safe), and then immediately remove a USB storage device that is connected directly to your computer.
Your Hi-Speed USB isochronous device uses over 80 percent of the processor (CPU).
When you stream video through a Hi-Speed USB 2.0 isochronous camera, other USB devices may stop functioning or perform poorly. For example, USB speakers may stop streaming audio, or a mouse on the same hub may become choppy.