Ocean Optics USB2000 - Manual (Page 20)

Troubleshooting
USB2000 Operating Instructions 15
3. Locate the unknown device (marked with a large question mark). Right-click on the Unknown Device
listing and select the Uninstall or Remove option.
4. Click the OK button to continue. A warning box appears confirming the removal of the Unknown Device.
Click the OK button to confirm the device removal.
5. Disconnect the USB2000 from your computer.
6. Locate the section in this chapter that is appropriate to your operating system and perform the steps in
the “Remove Improperly Installed Files” section.
Windows 98:
Remove Improperly Installed Files:
1. Open Windows Explorer.
2. Navigate to the Windows | INF directory. If the INF directory is not visible, you will need to disable the
“Hide System Files and Folders” option on in Windows Folder Options.
Note: If the INF directory is not visible, you will need to disable the “Hide System Files and Folders” and
“Hide File Extensions for Known File Types” options in Windows Folder Options.
You can access Windows Folder Options from Windows Explorer, under the View | Options
menu selection.
3. Delete the OOI_USB.INF file in the INF directory.
4. Navigate to the Windows | System32 | Drivers directory.
5. Delete the EZUSB.SYS file.
6. Reinstall your Ocean Optics application and reboot the system when prompted.
7. Plug in the USB device.
The system will now be able to locate and install the correct drivers for the USB device.