how do i change where my start bar thing

[Southern4x4]

i hit some keys i didnt see and now my start task bar thing is vertical and is on the right side of my screen how do i set it back to normal

[LT-R450ApK]

 click in the blue part and drag it back to normal after that LOCK the task bar by right clickin on the blue part and click lock the taskbar lol

[TRX450R_Racer]

Click on it and drag it to the bottom.

[Southern4x4]

o ok thanks