Windows button, New Notifications, and Speakers Not Working

Hello.

I'm a relative newcomer to personal computers.

I'm using Windows 10, 64-bit. About a week ago or so, the Windows button, the New Notifications button, and the Speakers button stopped working. For example, when I left click on the Windows a button small circle appears for a few seconds and then disappears, but that's all.

Curiously, perhaps, when I right click on the buttons they work (in terms of "right clicking" (sorry about the phrase).

Any suggestions as to how the solve this problem is appreciated.

Thank you.

After updating to the most recent version of Windows 10 the problems I stated above how some how been resolved.