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I'm currently running linux with windows dualboot.

I've installed windows 10 successfully with my OEM Windows 7 Pro license that came together with my dell XPS, this was possible due to microsoft upgrade program a long time ago.

This way, I can use my linux O.S. and sometimes I can reboot my computer and start windows 10, which is successfully activated with my Windows 7 Pro OEM key.

My question is, can I install a Windows 10 VM with VirtualBox in my linux environment, and during windows install use the same Windows 7 Pro OEM key? Is it legal?

murilolobato
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4 Answers4

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Like other answers have mentioned, it is allowed by the license as long as you only use one instance.

As to how to do it in practice, you need to copy the ACPI tables to the virtual machine. The relevant tables are, depending on how new your machine is, MSDM and SLIC. You can copy them as follows:

  1. ls /sys/firmware/acpi/tables/ to see what tables your system has. Older systems have only MSDM, newer ones have both.

  2. Copy the tables to a single file: sudo cat /sys/firmware/acpi/tables/MSDM /sys/firmware/acpi/tables/SLIC > custom_acpi

  3. Set a VirtualBox attribute on the machine: VBoxManage setextradata "Windows 10" "VBoxInternal/Devices/acpi/0/Config/CustomTable" /home/..../custom_acpi where the last argument is the full path to custom_acpi file created in previous step.

  4. You can see the product key with strings custom_acpi, but Windows 10 may refuse it as it is an OEM key. However if you continue the installation (select "I'm reinstalling Windows"), it will automatically activate after the installation is complete.

jpa
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  1. Backup your Windows installation.
  2. Uninstall Windows from your hard drive.
  3. Install Windows in a VM.
  4. Ensure the Windows installation has internet access.
  5. Attempt to activate the installation. You may need to call Microsoft to complete this step over the phone.

If they ask you why your are re-activating, tell them you have removed the old installation and changed your system configuration and that you are now reinstalling. (All true.)

Don't volunteer that the Windows 7 key is OEM. Your Windows 10 entitlement may or may not be marked as originating from OEM. If they say that it is OEM and that you cannot use it to activate, then you know. Say thanks and end the call. Restore your backup from step 1 and stick with dual boot, or purchase a copy of Windows 10 and activate yours that way.

Of course, you could always install Hyper-V component of Windows 10 and run your Linux inside. No licensing issues that way. And it may be installed and running by default.

Also, before step 2, you might try to find some sort of P2V solution. This basically takes an 'image' of your physical system and converts it to a virtual machine. VirtualBox wiki article. This may trigger a reactivation due to the significant change in the HAL (hardware abstraction layer).

Jeter-work
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The OEM upgrade license entitles you to (more or less) the same rights as a full Windows 10 installation. However, the Windows 10 Pro EULA does not allow you to install more than one instance (sections 2.b and 2.d.iv).

lungj
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I'm not sure, because I never understand Microsoft's license mess, but I don't think this will work. A Windows 10 license is not a product key, but an 'entitlement'. It is supposed to do away with product keys.

Especially with a Windows 7 license that has been upgraded to an entitlement you may run into issues.

Halfgaar
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