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Found solution for my case.1. Uninstall previous drivers2. Uninstall Toolbox in safe mode3. Install new drivers downloaded from Canon (updated for Win10)4. Install Toolbox in safe mode (also downloaded from Canon, version ToolBox_4911mf17_Win_EN)Now ...

Hi! Have same problem.But even can't reinstall MF Toolbox. Installer after asking some qustions just stop responding. Uninstaller does the same.