Check: Disconnect the USB cable, then uninstall and reinstall the MP Drivers and MP Navigator EX.
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Step 1: Uninstall the MP Drivers.
See "Deleting the Unnecessary MP Drivers" for details.
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Step 2: Uninstall MP Navigator EX.
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From the Start menu, select All Programs > Canon Utilities > MP Navigator EX 4.0 > MP Navigator EX Uninstall.
Note-
In Windows 7 or Windows Vista, a confirmation/warning dialog box may appear when installing, uninstalling or starting up software.
This dialog box appears when administrative rights are required to perform a task.
If you are logged on to an administrator account, follow the on-screen instructions.
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When a confirmation appears, click Yes.
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When uninstallation is complete, click OK.
MP Navigator EX is uninstalled.
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Step 3: Reinstall the MP Drivers and MP Navigator EX.
Insert the Setup CD-ROM into the computer's disc drive, then select Custom Install and reinstall the MP Drivers and MP Navigator EX.
