WIN8.1正版武家之殇启动游戏就出现error，求哥哥姐姐们帮助

我去这样呢

配置都是够得，前几天刚买的，结果不能玩 非常郁闷 以前盗版的存档什么的都删除了。
出现We have detected that your steam installation has bennm corrupted and the game will now exit.This is usually due to an attempt to play a pirated copy of the game,but may in some cases be caused by a virus or cheat program..........please purchase one from http://store.steampowered.com/app/34330/or http://store.steampowered.com/app/201271/.