Hello Isecretan,
The error you are experiencing may be related to the user account you are currently using. Please try using the MP Navigator in a different user account or create a new account for testing purposes. Perform the following to create a new administrative account:
1. Click Start and open the Control Panel.
2. Under User Accounts, select 'Add or Remove User accounts'.
3. In the Manage Accounts window, select 'Create a new account' at the bottom.
4. Create a name for the account, then select 'Administrator' and click 'Create Account' at the bottom.
5. The new account should be visible in the Manage Accounts screen.
Once this process is complete, close all windows or programs. Then log out of the current account using the Log Out option from the start menu, then log in to the new account. Once logged in, attempt to scan from the MP Navigator on the new account.
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