Right click on the picture that आप want as your वॉलपेपर then click on set as वॉलपेपर image. या if not, go on control Panel and change it from Display and Themes I think it's called.
u know stop joking it easy okay this is how आप take a picture of what u want it to be and it says set at background and thats how uuuuuuuuuu get it i dont have to say it agian geash!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! and those who dont know s i post yall dum an byeeeeeee!!!!!!!!!!!!!! PEACE!!!!!!!!!!!!!!!!!!!!!!!!!
