Is the command suppose to give some kind of confirmation?
Im entering the following
"c:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setextradata "Server2012 R2 Preview" VBoxInternal/CPUM/CMPXCHG16B 1
Nothing happens on the next line.. and nothing changes when I start the VM. I using the VHD file from TechNet.
Martin wrote:You could also add "2012 R2" to the thread title?
Unfortunately the title is already about as long as the site allows. I also don't want to make a substantial change to the title of someone else's post, but if the OP can find a way to reword so as to squeeze 2012R2 into the title then that would certainly be useful (e.g. discard "Installing", and say "Win8.1").
loukingjr wrote:I installed 8.1 from the .iso and that went okay. I installed the guest additions in compatibility mode and seem to have no aero or full acreen etc.
any thoughts?
The additions installed without error but I noticed problems with the screen also. I checked device manager and the "Virtualbox Device" has an error.
Windows cannot initialize the device driver for this hardware. (Code 37)
{Unable to Load Device Driver}
%hs device driver could not be loaded.
Error Status was 0x%x
When I run the command suggested, I get this message:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.
C:\windows\system32>"c:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setextra
data Win 8.1 VBoxInternal/CPUM/CMPXCHG16B 1
VBoxManage.exe: error: Failed to create the VirtualBox object!
VBoxManage.exe: error: Code CO_E_SERVER_EXEC_FAILURE (0x80080005) - Server execu
tion failed (extended info not available)
VBoxManage.exe: error: Most likely, the VirtualBox COM server is not running or
failed to start.