Fix: Failed to install Windows 8.1 (Blue) in VirtualBox

If you are reading this article it is probably because when you try install Windows 8.1 Preview on a VirtualBox machine appears the next message:

“Your PC needs to restart.
Please hold down the power button.
Error Code: 0x000000C4

Don’t worry, there is nothing stopping you from installing Windows 8.1 in VirtualBox, you just have to perform the following task:

  1. Open Run with the key combination Windows + R. Something like the following image will appear.
  2. We introduce the following specification: «C:Program FilesOracleVirtualBoxVBoxManage.exe» setextradata «Windows 8.1» VBoxInternal/CPUM/CMPXCHG16B 1
  3. Windows 8.1 refers to the name that we give to the virtual machine (in my case it was like that, otherwise you would have to change the name).
  4. The first path refers to the VirtualBox installation directory, if you have it in a different directory (This is the default one) you will have to change it.

When you run it, a window will appear that performs a very fast process and you will have the machine ready to continue with the installation.

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Before performing this solution, close VirtualBox and when you finish the task, open it again. If you have any problem feel free to comment.


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