how to rotate pics

[Turkey chaser]

sorry maybe this ? has been asked before when i try to post pictures some of them get rotated and i do not know how to get them facing the right direction

[prefers shiners]

I always copy the pictures I am going to post on my "desktop" first so I can then resize them, rotate or whatever needs to be done.....so, if your picture is there, don't open the picture just right click it and a window should come up with a list of actions one of which should be "rotate clockwise" or "rotate counter clockwise".... then save your corrected picture.....