When the oCam main window is visible, you can reset the settings from the Options menu.

Go to Menu - Options, then click the Reset button as shown below to reset all oCam settings.

However, if the oCam main window has moved to another area of the PC screen for some reason and is no longer visible, you can reset it using the following method.
 

After closing oCam, open Windows File Explorer, go to the `%appdata%\ocam` folder, and delete the `Config.ini` file.

However, if you delete the `Config.ini` file directly, your registration information may also be deleted, so this method is not recommended unless absolutely necessary.