Even if you are a member of the Administrators group with Full Control privileges, you will need to modify the UAC security option to be granted the same rights as the Administrator user.
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Open the Control Panel and select Administrative Tools.
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Open Local Security Policy.
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In the tree view, select to expand Local Policies > Security Options.
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In the right pane, scroll down to the option User Account Control: Run all administrators in Admin Approval Mode (enabled by default).
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Right-click this option and on the shortcut menu, select Properties.
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Select the Disabled radio button.
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Restart your computer.