China is so full of pirated software - including Windows. Could well be that you will have a virus on your PC if you are stupid enough to use it!

I agree damned good point- you need to be as dim as a toch-H lamp to use Windows in China; unless you is some sort of masochist who enjoys being spied on. Get yourself a free copy of linux, Ubuntu, Solus, Mint, somat like those and then download your Wechat for Linux, otherwise you'll become a closet DIY jerker like a few on this forum. During the QQ-period and QQ for Linux didn't work too well but Wechat does.