My laptop orientation has changed to horizontal

[Ajaiah]

When I was using laptop I pressed some button & the orientation changed now it is displaying horizontal How to over come this problem my laptop is Samsung

 

[dandn0ten]

can you prove a picture of it please ?

 

[laviniuc]

there's an option for landscape / portrait on the windows display settings in control panel, look also at the function keys, one should switch between them. it's probably what you pressed by mistake

 

[ShadeTreeTech]

Ctrl+Alt+Up Arrow on an Intel GPU.