Windows 10 `Big' taskbar - unlock not available

I am trying to fix a task bar that is occupying one third of the screen. In the right click context menu only four commands are displayed; Show app icons; Show all notification items; Show touch keyboard button and Show language switcher. Other commands,expected, such as Lock the task bar and Properties are not displayed. I want to check if the task bar is locked as it cannot be clicked and dragged, with the double-headed cursor, to a normal size or to the sides and top of the screen.

Is there an alternate way to check if the task bar is locked or unlocked?

MalcolmW said:

I am trying to fix a task bar that is occupying one third of the screen. In the right click context menu only four commands are displayed; Show app icons; Show all notification items; Show touch keyboard button and Show language switcher. Other commands,expected, such as Lock the task bar and Properties are not displayed. I want to check if the task bar is locked as it cannot be clicked and dragged, with the double-headed cursor, to a normal size or to the sides and top of the screen.

Is there an alternate way to check if the task bar is locked or unlocked?

You are in "Tablet Mode"

Tablet Mode - Turn On or Off in Windows 10 - Windows 10 Forums

Edwin said:

You are in "Tablet Mode"

Tablet Mode - Turn On or Off in Windows 10 - Windows 10 Forums

Thank you for the link. All is back in order for which you have my thanks.
Malcolm