In fact it’s the 2016 which doesn’t support SSE2 (for example 12.2.xxx)

The version i use (2015.10.2.2218) support it.

It’s just that the key avast send with the offline method are only for avast 2016 (12.2.xxx)
So i’m searching a way to ask for an “old” key or a compatible key for avast 2015 (2015.10.2)

regards