well, i know about that feature, but i cannot accept it, I need taskbar to be always visible, I use notification systray to see some important notification icons, time and so on.
What about the clock on the wall, or the calendar or timer on the desk?
People are trying to help you, but this all comes down to you refusing to flex your wrist to move the mouse to quickly reveal something, and instead wanting to move your eyes in their sockets to be able to get a brief glance at something always visible, but it is the visible thing that is irritating you. You want to always see it, but you do not want to see it so large because it takes up valuable screen space, ...and on a laptop to boot!
Good luck in your endeavor.
That's a little harsh, uncalled for, and you need to cool your jets a little. There are many perfectly valid reasons for wanting to lock the taskbar and not use autohide. On my computer, I monitor the temperatures of each of my six cores with CoreTemp, which displays them in the notification area. I also monitor internet activity on a small bar chart that runs in my taskbar. Both take up far less room there than their desktop alternatives. I also can see at a glance what windows are open with a locked taskbar.
Also, an unlocked taskbar with autohide enabled has the nasty habit of popping up when one moves the mouse pointer to the edge the window where the taskbar is located. I find that extremely inconvenient and annoying and I'm sure I'm not the only one. I'm sure I missed many other reasons but those were what popped to mind just now.
It's the OP's computer and it's his decision on how he wants to use it.