How to fix Invalid Virtual Box parameter –cpuidset?

You have encountered an Invalid VirtualBox parameter –cpuidset error on your Virtual Box, that is why you are here. Stick with us, as I am going to show you how to fix the Invalid Virtual Box parameter –cpuidset error on your Virtual Box.

Fix Invalid Virtual Box parameter –cpuidset

fix Invalid Virtual Box parameter –cpuidset
fix Invalid Virtual Box parameter –cpuidset

The error started way back when users used OS X El Capitan on their virtual machines. Users who tried to use OS X El Capitan on their virtual box experienced a yellow screen or

VBoxManage.exe modify “OS X El Capitan” –-cpuidset 00000001 000106e5 00100800 0098e3fd bfebfbff

error on their CMD (command prompt).

You can even see the error VBoxManage.exe error: Invalid parameter ‘–cpuidset’ at the bottom.

Downloading and reinstalling the Virtual Box or the macOS won’t fix the problem. Many have tried and still experience the error and it can be fixed within few minutes.

Here is how to fix it:

Run CMD as Admin, go to Virtual Box, and select the VBoxManage.exe.

C:\Program Files\Oracle\VirtualBox\VBoxManage.exe

Now type the following:

Invalid Virtual Box parameter –cpuidset
Invalid Virtual Box parameter –cpuidset

VBoxManage.exe modifyvm ***** –cpuidset 00000001 000106e5 00100800 0098e3fd bfebfbff

In above ***** is my name. Insert your name and press Enter on your Keyboard.

Most of them experienced the error because they have used “” and you do not need that at the moment of calling your VM Name. Additionally, try to give a name without spacing, it will be easier to call any VM Name without spacing.

Now type the following command:

VBoxManage setextradata Lion “VBoxInternal/Devices/efi/0/Config/DmiSystemProduct” “iMac11,3”

VBoxManage setextradata Lion “VBoxInternal/Devices/efi/0/Config/DmiSystemVersion” “1.0”

VBoxManage setextradata Lion “VBoxInternal/Devices/efi/0/Config/DmiBoardProduct” “Iloveapple”

VBoxManage setextradata Lion “VBoxInternal/Devices/smc/0/Config/DeviceKey” “ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc”

VBoxManage setextradata Lion “VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC” 1

Here the command is used for Mac OS X Lion and Mac OS X Sierra. You can change it for other macOS by changing the iMac11,3 to your macOS version. And that is how to fix Invalid Virtual Box parameter –cpuidset on virtual box.

Related: How to Fix macOS Screen Resolution After OS Installation?

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1 Response

  1. michael says:

    doesnt work! 🙁

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