The process of disabling the DPI button on a mouse can vary depending on the make and model of the mouse, but here are some general steps you can follow:
Open the mouse settings: You can usually do this by searching for "Mouse" in the Windows search bar and selecting "Mouse settings" from the results.
Navigate to the button settings: Look for an option called "Button settings" or something similar. This should give you access to the different buttons on your mouse.
Select the DPI button: Look for the option that corresponds to the DPI button on your mouse. It may be labeled as "DPI" or "Sensitivity" or have a picture of a mouse with a plus and minus sign.
Disable the button: Once you have located the DPI button, you should be able to disable it by selecting it and choosing "Disabled" or "None" from the dropdown menu.
Apply the changes: Once you have disabled the DPI button, be sure to click "Apply" or "OK" to save the changes.
If you are unable to find the mouse settings or button settings on your computer, you may need to consult the documentation or support resources for your specific mouse model.