Mouse double-clicks when clicked once

If your mouse double-clicked from the first day of usage, check the Windows setting called Single-click to open an item. This option makes a single mouse click act as a double click. Disable this setting to return the mouse to the standard one click option. 

Disabling the single-click to open option in Windows 10

1. Click on the magnifying glass to bring up the Search menu, type ‘single-click’, and then select Specify single- or double-click to open.

2. Select the General tab, and under Click items as follows, make sure Double-click to open an item (single-click to select) is the selected option.