VBox 安装Windows Server 2008 R2, 启动时报错误如下：
**Windows Boot Manager**
Windows failed to start. A recent hardware change or software change might be the cause. To fix the problem:
1. Insert your windows installation disc and restart your computer.
2. Choose your language and then click "next."
3. Click "Repair your computer."
If you do not have the disc, contact your system admin. or computer manufacturer for assistance.
Status: 0x0000225
Info: An unexpected error has occurred.
解决方法：
在Vbox 中： 设置--> 系统 --> 启用：“Enable IO APIC”。
小知识，随笔记之。
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