After I completed the install of my Windows Server 2012 in Virtualbox, I started getting this weird error code: Error code: 0x000000C4. I started doing a bit of research, and found out the virtualbox contains a bug with this version of server 2012 64 bit. Here’s the exact error when booting the OS.
Your PC needs to restart. Please hold down the power button. Error code: 0x000000C4 Parameters: 0x0000000000000091 0x000000000000000F 0xFFFFF801E5962A80 0x0000000000000000
After doing a bit of research I came upon this solution. Notice that if you have spaces either in the VirtualBox machine name or the path, you must surround it by quotation marks “”.
VBoxManage setextradata [vmname] VBoxInternal/CPUM/CMPXCHG16B 1
and if your running windows
"c:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setextradata [vmname] VBoxInternal/CPUM/CMPXCHG16B 1
and here’s the link to the site.