Seems a pity to have a topic about Safe Start, without cutting to the chase and actually saying, here, that, it is done by holding down Shift+Alt+Ctrl (Shift+Alt+Cmd on Mac) while the Startup splashscreen is appearing 
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Seems a pity to have a topic about Safe Start, without cutting to the chase and actually saying, here, that, it is done by holding down Shift+Alt+Ctrl (Shift+Alt+Cmd on Mac) while the Startup splashscreen is appearing .