If you find your mouse buttons are reversed, it should be a simple fix. When you left-click, you're probably getting the Context Menu instead of the action you expected. Here's how to fix this problem.
Press the Windows Key + S, begin typing in mouse and click on Mouse settings.
You can also go to Start > Settings > Devices > Mouse.
At the top, you should see Select your primary mouse button. Right-click on the dropdown box and right-click on Left to restore the left mouse button.
Remember that the buttons are reversed so you need to operate them backwards.
