Since the "Support" is not putting any notice or addressing this issue, nor were they planning on it. Here is a little bit of info about it;
https://allods.mail.ru/news.php?article=6376
Use Google Chrome to translate.
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Problems running the game on Windows 10
12/30/2015
Dear players
Currently there is a problem with the launch of the game launcher on systems running Windows 10, after you install the security update for Internet Explorer Flash Player on 12/29/2015.
Up to resolve the problem we recommend to temporarily run the game client through Game
https://games.mail.ru/gamecenter/download/Center.
We apologize for any inconvenience.