An unexpected error has occurred while logging in

Hello,

Sorry for my bad english, i am french who lives in French Canada and it's not available to go in EUW to have french support with my NA Account. I have a problem with my LOL Client.

I installed League Of Legends but it's impossible to Log In. ''an unexpected error has occurred while logging in''.

I used the Hextech software I uninstalled and reinstall the game I have the latest version of Internet Explorer I tried to change the sector to EUW then again to NA, it doesn't work I have the good hour and the good location

I don't know what to do... can someone help me ? Sorry again for my bad english, i'm learning :3

EDIT: I resolved the problem. I just download driver booster and download all drivers... Then LOL is now working. Hope it will help some of you.