quick launch toolbar
system tray
Quick launch tool bar
r u referring to the background picture or the windows on your taskbar?
contents button
Right click on taskbar, the click on "Lock the taskbar".
It varies depending on your operating system, but in general the bar along the bottom is the taskbar, the picture you see is called the desktop background, and the programs on the desktop background are called icons.
True
on the taskbar right click on it and select lock the taskbar and when you do it again it should be checkmarked
A taskbar is used for reseting the whole computer
The best trick I know is to open up Task Manager, open processes, tell it to end the process of explorer.exe (this will close the desktop, taskbar and any file explorer that you have open) then click on applications and click on new task then enter explorer.exe (this will reopen the desktop and the taskbar) if the taskbar is still frozen, then I don't know what to tell you (give the taskbar a few second the open after reopening it)
If you use the unlock option you will still have a narrow blue line at the bottom. But the taskbar basically would be hidden. If you use the autohide option the taskbar will hide completely automatically. But when you move the cursor at the place where the taskbar suppose to be the taskbar will pop up.
You right-click on your taskbar and then click on properties. Then you un-select 'Keep the taskbar on top of other windows'.