It should fire the mouse button back up again and have you working again within a minute or two. Change the USB port. Sometimes you can trigger Windows to pick up the mouse again if you plug it into a different USB slot. This forces the OS to register the device again and hopefully have it working as it was. I've had a long time problem with some types of mouse clicks not working in Safari. It's not specific to any one mouse (not a mechanical problem, and I don't use wireless mice). I first noticed it happening on the NFL web site, but now it happens on many other sites. Some things can be clicked. One additional tip that might be useful in situations where the mouse has stopped working, is to access the system menus via the keyboard, which can be done by pressing Control-F2 for system menus.

Mac Os X Left Mouse Button Stops Working Youtube
Mac Os X Left Mouse Button Stops Working Video
Mac Os X Left Mouse Button Stops Working Windows 10

Check System Preferences Mouse pane (or Trackpad pane). For the Mouse pane, make sure the Primary mouse button is set for the one on the left.

The Control key toggles the 'right-click' with the primary button, when the Control key is pressed down while clicking the primary mouse button (or on a Magic Trackpad). So make sure you are not pressing the Control key inadvertently.

Mac Os X Left Mouse Button Stops Working Youtube

Also, if you are using a Magic Trackpad (separate or on a MacBook), the botton portion (along the edge closest to you) is sensitive to clicking on the right side versus left side. The rest of the trackpad is not. So, if you are clicking near that edge closest to you, a click on the right side will be a right-click. It is designed this way, because some people use their thumb along that edge to click (not their 'pointing' finger); on old-school trackpads, physical buttons were located there. So, you can still point with the index finger and click with the thumb on the right or left 'button.' You should be able to adjust this behavior in System Preferences Trackpad pane.

Aug 22, 2012 7:18 PM

Turn the device off and on

Magic Mouse has a switch on the bottom of the device, and Magic Keyboard and Magic Trackpad have a switch on the back edge of the device. Slide the switch to turn the device off (no green is visible), then slide the switch back to turn the device on (green becomes visible).

Earlier Apple Wireless Keyboard and Magic Trackpad models have a power button on the right-hand side of the device. Hold the button until the green LED on top of the device turns off, then press the button until you can see the green LED again to turn the device on.

Make sure Bluetooth is turned on

Using your Mac notebook's built-in trackpad or a USB mouse, choose Apple menu  > System Preferences, then click Bluetooth. Make sure Bluetooth is turned on.

If the Bluetooth icon isn't appearing or if the menu bar status continues to indicate that Bluetooth is off, restart your computer and try turning Bluetooth on again.

Connect the Lightning cable

Connect your wireless accessory to your Mac with the Lightning to USB cable or USB-C to Lightning cable, wait one minute, then disconnect the cable. This pairs the accessory with your Mac and charges the built-in battery. To check your accessory's charge level, click the Control Centre icon in the menu bar, then click Bluetooth.

Mac Os X Left Mouse Button Stops Working Video

Earlier models don’t use a Lightning cable for charging, but have batteries you can replace. Find out how to pair those devices with your Mac.

Check for wireless interference

Mac Os X Left Mouse Button Stops Working Windows 10

If your accessory isn't staying connected wirelessly, there may be interference with other wireless devices. Find out how to resolve Wi-Fi and Bluetooth issues caused by wireless interference.