How do I completely reset the settings inside?

[Huangwwz]

Hello, the question I want to ask is, how do I completely uninstall the tool? The reason is this, I made a wrong setting, resulting in a strange error in the grid of the selection area (as shown in the figure). I tried to restore, but it didn't work. When I uninstall and reinstall again, it will always remember my settings before uninstalling. How can I do it? Sorry to bother you, looking forward to your reply.