How to make guest unaware of battery power source?

[eyeofhell]

Hello.

I have OSX as host and Windows 7 as guest. Windows 7 guest is aware if host is on battery power source. This is not good since some applications and actions in Windows 7 can't start on battery power source. Is it a way to make guest unaware of power source so it think that it is always on AC power?

[mpack]

Off-topic question about a Windows guest, and possibly wrong website too.

[eyeofhell]

Any guest. Ubuntu guest is also perfectly aware about battery .
What do you mean by "wrong site"? This is a community forum after all, a good place to search for hints and insights .

[mpack]

I mean that good answers to your question will likely only be valid for a particular guest OS, hence off topic in this forum: which is for supporting the VBox GUI application itself, not the guests that you choose to run on it, or the hosts that they may rely on.

Also, your question skirts dangerously close to one that Microsoft might be expected to answer: in fact your problem is not that the guest detects the battery, your problem is that the guest OS takes inappropriate (for you) action because of it. That would make your question really a support question for the developers of the OS in question, not a VBox issue.

[eyeofhell]

If guest detects a battery than VirtualBox informs guest about battery. Guest is running in virtual environment and can't access real hardware other than cpu / memory. So if VirtualBox informs guest about battery - it is a Virtualox feature. What i'm asking about - how to disable this feature . I don't need a virtual battery on guests. Really. They must be AC connected O_O.

[Perryg]

You might be able to turn this off using VBoxManage but more than likely you will loose functionality of other features/resources. Why not take care of this on the guests end? Exactly what program/s are you trying to use that will not work?

[eyeofhell]

Windows 7 update, for example. It requires AC power source and it's an operating system feature. Even if i have my 10h macbook 100% charged i can't initial update since Windows 7 will complains about "not on AC power". And i need to debug this @$!#$ update .

[Perryg]

You can submit an issue to bugtracker . Explain completely and don't forget to attach the guests log file.

[Sasquatch]

Make a snapshot of the VM so you can return to a working situation in case it breaks. Then using the VBoxManage command to turn off ACPI. That is what shows the battery in the VM. Keep in mind that things can very likely blow up the moment you disable it, Windows it not so forgiving when you change things after it's installed.

[chrisstankevitz]

How can I simulate AC power remove and restored (aka switch to battery power then back to AC power) using virtualbox? Any guest. Sort of like I can use virtualbox to simulate the insertion and removal of a CD. Any guest.

Thank you,

Chris

[Sasquatch]

How can I simulate AC power remove and restored (aka switch to battery power then back to AC power) using virtualbox? Any guest. Sort of like I can use virtualbox to simulate the insertion and removal of a CD. Any guest.

Thank you,

Chris

You can't without doing that physically.

[mladoux]

I had the same issue. I just disabled the device in the device manager, and it stopped prompting me. Do not disable ACPI for the guest, or else some versions of windows will fail to boot.