Fixing the ' Your PC needs to restart ' error in Win

Fixing the ' Your PC needs to restart ' error in Windows 8.1 in Virtualboxjust a quick tip for people out there trying out W Indows 8.1 in Oracle VirtualBox. If you ' re experiencing the following error when you try to boot from the ISO:

Your PC needs to restart.

Please hold down the power button.

Error CODE:0X000000C4

Parameters:

0x0000000000000091

0x000000000000000f

0xfffff801e5962a80

0x0000000000000000

Here ' s the solution. Open a command prompt in the directory in which you installed VirtualBox and run the following command:

VBoxManage.exe Setextradata [Vmname] vboxinternal/cpum/cmpxchg16b 1

Where [Vmname] is the name of your Vsan, which can be discovered with:

VBoxManage.exe List VMS

Don ' t forget to wrap your VMS name in quotes if it contains spaces.

This command enables the cmpxchg16b CPU instruction. You can find more info on the Wikipedia article on x86-64.

Fixing the ' Your PC needs to restart ' error in Win