[SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Discussions about using Windows guests in VirtualBox.

Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby dke » 23. Jul 2013, 14:23

Hi,

I have a problem with 32 & 64bits version, any idea ?
It's not the same error code, and I did what you said before ( <ExtraDataItem name="VBoxInternal/CPUM/CMPXCHG16B" value="1"/>, and choosing Windows 8.1 for 32bits version or Windows 8.1 64bits for 64 bits version)

And also maybe related, at start, it said that "VT-x/AMD-V has been activated but is not working" but I have unchecked these in "system / acceleration".

Thanks for your help...
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby mpack » 23. Jul 2013, 14:40

I believe you need VT-x for all versions of Win8, i.e. both 32bit and 64bit. The error message you mention usually means that VT-x isn't yet enabled in your host's BIOS, or else it means that some other software has already locked the feature for its own use.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby dke » 23. Jul 2013, 15:13

That's it ! thank you so much :)
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby CristianoVM » 1. Aug 2013, 17:31

Thank you very much! It worked flawlessly... (on a Mac host)

But I'm just curious... What exactly does this command do?

Tks again.

Rgds.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby mpack » 1. Aug 2013, 17:45

CristianoVM wrote:But I'm just curious... What exactly does this command do?

Nothing much anymore. It sets an option that wasn't enabled by default in the Win8 template - then VBox v4.2.16 added a Win8.1 template.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby enkidoe » 8. Aug 2013, 18:24

am having the same "your pc needs to restart "problem.

tried this:

<ExtraDataItem name="VBoxInternal/CPUM/CMPXCHG16B" value="1"/>

tried this:


"c:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setextradata [Windows 8.1] VBoxInternal/CPUM/CMPXCHG16B 1
from my start/run menu

but both options will not solve my problem.

anyone? am using the latest virtual box version.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby tompl » 3. Sep 2013, 11:46

Hello,

I have problem with running Win8.1 x64 install:

win81error.png
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My system configuration:

- Windows 7 x64 PRO
- 8 GB RAM
- Intel i7-2760QM ( BIOS: VT extensions ENABLED )
- VirtualBox 4.2.16 r86992 ( with latest extensions )

BIOS:
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20130903_120327.jpg
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I tried to solve this issue with:

1) Adding line to Win8.1.vbox file ( ExtraData section):

<ExtraDataItem name="VBoxInternal/CPUM/CMPXCHG16B" value="1"/>

2) Running command ( with success - getextradata show 1 value ) [ run by my user / also run as Administrator ]:

Code: Select all   Expand viewCollapse view
VBoxManage.exe setextradata "Win8.1" VBoxInternal/CPUM/CMPXCHG16B 1


3) Running command ( with success - getextradata show 1 value ) [ run by my user / also run as Administrator ]:

Code: Select all   Expand viewCollapse view
VBoxManage.exe setextradata global VBoxInternal/CPUM/CMPXCHG16B 1


4) I removed VBox extensions.

5) Changing Processor, GFX Card ( 2d acceleration, 3d acceleration, 128 MB ram ) , VT options in Settings, Networking off/on, USB off/on - plenty of combinations...

6) Running again VBox install ( reinstall )

7) Uninstalling VBox and installing again.

Nothing helped. Anyone with idea how to solve this in my case?
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby tompl » 3. Sep 2013, 13:32

Ok, problem solved I have to enable XD CPU feature.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby Eleirs » 16. Sep 2013, 14:50

Hello to all,
After that do the terminal command I get the following error:
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c:\Program Files\Oracle\VirtualBox\VBoxManage.exe is not a valid Win32 application

What could be the problem?
I have VirtualBox 4.2 on Windows7
Thanks in advance

Salve a tutti,
Dopo che do il comando da terminale mi appare il seguente errore:
Code: Select all   Expand viewCollapse view
c:\Program Files\Oracle\VirtualBox\VBoxManage.exe non è un'applicazione di Win32 valida
Quale potrebbe essere il problema?
Ho VirtualBox 4.2 su Windows7
Grazie in anticipo
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby mpack » 16. Sep 2013, 15:05

That question is off-topic in this thread: however I'll answer quickly that "Program Files" is the name of the folder on English language systems. Presumably it's called something else in your language. If you need further help on using VBoxManage then please open a separate topic.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby Eleirs » 16. Sep 2013, 19:50

Now the problem is different:
after run this command
Code: Select all   Expand viewCollapse view
C:\windows\system32>"c:\Program Files\Oracle\VirtualBox\VBoxManage.exe" setextradata "windows" 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.


Can you help me?
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby mpack » 17. Sep 2013, 11:22

I already told you that a discussion about VBoxManage is off-topic in this thread. I already cut you some slack by not deleting your last message, but now you really need to create another thread. In any case the command you are trying to execute is no longer required: simply use the new Win 8.1 template when creating the VM in the normal way.
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby FiSi » 4. Jan 2014, 20:34

Hi!

I have the same issue with the latest virtualbox downloaded from the official site.

Windows 8.1 x64, running on w8.1 x64 vm, used the command prompt, i have that line in the .vbox file.

Still have this error... Now what to do?
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby DIF » 9. Jan 2014, 23:45

Thank you for explaining
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Re: [SOLVED] Installing Windows 8.1 64 preview in VirtualBox

Postby chabermu » 1. Aug 2014, 11:32

Thanks :D
Kind Regards
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