1, win7 computer double-click to open the Opera browser, in the open window, click the Opera icon in the upper left corner, this will bring up a new menu, in the menu Select the setting option;
2. After the Opera browser's settings window pops up, you can see the current default browser under the right search field. One;
3, directly click on the triangle symbol behind, then select the Opera browser in the drop-down menu that appears, and finally click OK at the bottom of the window to save the settings.
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