USB Over Current Condition Causes Windows 95 Hang

 Last reviewed: February 20, 1998
Article ID: Q181499
The information in this article applies to:
  • Microsoft Windows 95 OEM Service Release version 2.1

SYMPTOMS

Windows 95 may stop responding (hang) if an over current condition is detected from a Universal Serial Bus (USB) device. Over current conditions can occur when a USB device is "hot plugged" (or plugged in while the computer is on) into the computer.

CAUSE

Windows 95 may not clear the over current status in the USB hardware. This causes Windows 95 to service the same over current condition multiple times.

RESOLUTION

This problem is resolved by the following files for Windows 95 OEM Service Release 2.1: 

   Openhci.sys, dated 2/17/98, 31,280 bytes, version 4.03.1217
   Usbhub.sys, dated 2/17/98, 28,448 bytes, version 4.03.1217

STATUS

Microsoft has confirmed this to be a problem in Windows 95 OEM Service Release 2.1. A supported fix is now available, but has not been fully regression-tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.

Additional query words: overcurrent
Keywords : osr2 win95 kbhw kbfixlist
Version : WINDOWS:95
Platform : WINDOWS
Issue type : kbprb

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Last reviewed: February 20, 1998
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