SYMPTOMS
If you click the
Safely Remove Hardware icon in the notification area to disconnect a universal serial bus (USB) storage device while your Microsoft Windows 2000-based computer is still running, you may receive the following error message:
Unsafe Removal of Device
You have unplugged or ejected a device without stopping it which can cause your computer to crash and lose valuable data.
Please use the hotplug icon in the status bar to safely remove devices before unplugging them.
Notes- When you use this method to disconnect a USB device, this is known as hot-undocking.
- USB storage devices include floppy disk drives, CD-ROM drives, and hard disk drives.
CAUSE
This problem occurs when you upgrade to Microsoft Windows Server 2000 Service Pack 3, install a USB 2.0 driver, and then install the following Enhanced Host Controller Interface (EHCI) card from VIA Technologies:
VIA PCI to USB Host Controller
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
No prerequisites are required.
Restart requirement
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
-----------------------------------------------------------
13-Sep-2003 16:58 5.0.2195.6820 24,752 Hidclass.sys
13-Sep-2003 18:09 5.0.2195.6820 24,976 Openhci.sys
13-Sep-2003 18:09 5.0.2195.6820 32,944 Uhcd.sys
13-Sep-2003 18:09 5.0.2195.6820 20,752 Usbd.sys
19-Sep-2003 20:47 5.0.2195.6823 19,792 Usbehci.sys
13-Sep-2003 16:58 5.0.2195.6820 49,776 Usbhub20.sys
13-Sep-2003 18:09 5.0.2195.6820 138,768 Usbport.sys