Win7啓動Virtualbox時提示failed to open a session for the virtural machine

Win7啓動Virtualbox時提示failed to open a session for the virtural machine 一、今天 啓動Virtualbox時突然莫名其妙的彈出一個提示failed to open a session for the virtural machine   VT-x features locked or unavailable in MSR 如下 圖:

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