Canon MF8580Cdw Manual page 728

When [User Account Control] appears:
Click [Yes] or [Continue].
Follow the steps in the procedure below to delete the icon added in step 13 of
need it.
(1) Right-click the icon and select [Remove device] or [Delete] from the pop-up menu.
(2) Click [Yes].
(3) When [User Account Control] appears, click [Yes] or [Continue].
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"Installing the MF Drivers," if you do not