how to don't let other change your wallpaper ?(macbook pro)

First, you need to set a password in your mac. When you open your setting window, which you could set everything about your mac. you could see a lock on the left conner of the window. You could lock or unlock it with push the left button of your mouse. If you lock it, afther that, others wanna change your wallpaper, they have to unlock it, But unlock it need the the password you set.

Hope its useful for you. have any questions, send me a message.

哇
全英的，表达什么意思? I.T. class又是什么意思 wallpaper 是指墙纸还是什么
你是嫌别人改你的桌面还是什么?
I can't understand you clearly,please next time ask questions in English.3q

it seems that lendlice314's answer is right
but i rember there is not a lock on the page of setting wallpaper
so ……
if you still want to prevent others changing your wallpaper
you'd better set a password,or may need a third softwere

Set a passward in your mac.When you don't use your mac ,pls hold on your mac. it will