Sometimes a device just isn’t working like it should. A restart is a good first thing to try if your Roku is acting slow, the remote is lagging, or apps aren’t opening correctly.
On the Roku home screen, use the d-pad on your remote to select “Settings” in the left sidebar.
Scroll down to the “Power” settings.
Select “System Restart” from the Power settings.
Select “Restart” to confirm you want to restart the Roku. The device will restart after you make this selection.
The Roku will power off.