cant login?

So i bought a windows 10 pc completely new , downloaded file from warmane.com for WOTLK not (WOTLK OLD) for windows 10, changed realmlist from '.ru' to '.com' put user name and pass click login, then it says downloading updates, which is already weird i shouldnt have to but then , it says it cant find patch and i cant login? whats up with that? what am i doing wrong? pls help?

you do not need to update anything, that issue happens when you try to log-in by using email.
You need to use your warmane account name instead