help me!

i bought a new laptop yesterday in future shop , windows vista , now i found that i can't run qq,it showed ????....????>>>??>"....and i can't type chinese,i want to download sougou,but it always failed, so i decide to setup windows xp or vista chinese system,who can help me?
bye the way, i'm new here.

你要吧系统语言设置中文，还有改地区啥的

mo fei ,  ni lian wo de hui tie ye kan bu dao ?


Control Panel--->Control Panel\\Clock, Language, and Region---->

change the country and region

no i can read it,and i can also go to the chinese website

Control Panel--->Control Panel\\Clock, Language, and Region---->

change the country and region