Hello,

as of now. I managed to solve the problem. I hope it stays this way.

First, i needed a clean windows install. win 10 pro

New user with Admin rights. Altough my original user is admin too.

Cheked warhammer and log in user/doc and certificates were missing.

Then i downloaded the certificate linked by Megapull in steam topic at 2018 may 3.

Added them in windows. and it works..

Anyway, i could log in once. But previously i could log in as well, then never again.

Took me almost one day to fix it, i hope it helps for anyone with this issue.

Cheers,

Soloen