The answer to 'how to install gutter guards' is to attach gutter guards or covers over your existing gutters to help prevent leaves, twigs, and other debris from clogging them. Gutter guards create a barrier that allows water to flow into the gutters while keeping out larger objects that can cause clogs and backups.
Installing gutter guards typically involves measuring your gutters, selecting the right type of guards, and then securely attaching them to the gutter system. Some guards snap or clip on, while others require screwing or otherwise fastening them in place. Be sure to follow the manufacturer's instructions carefully for the best results.