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I can run VirtualBox just fine, but when I run anything from the command line I get:

VBoxManage.exe: error: Failed to create the VirtualBox object!
VBoxManage.exe: error: Code CO_E_SERVER_EXEC_FAILURE (0x80080005) - Server execution failed (extended info not available)
VBoxManage.exe: error: Most likely, the VirtualBox COM server is not running or failed to start.

This is pretty new. It used to work. I honestly can't remember what changed between the time that it worked and now. This particular error happened when I tried to run one a machine headless:

vboxmanage startvm VIRTUALMACHINE --type headless

but it happens with any command line operation.

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semi duplicate of… – PsychoData Sep 10 '13 at 22:25
The 2 questions have nothing to do with one another. That one is asking how to do it, this one is asking about an error I get when I do it. – aserwin Sep 10 '13 at 22:29
related question then. – PsychoData Sep 10 '13 at 22:30

I discovered the solution here.

You must NOT run the cmd window as an Administrator to make VBoxManage.exe function without this error.

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This didn't work for me and failed with VBoxManage.exe: error: Cannot open the raw disk '\\.\PhysicalDrive2': VERR_FILE_NOT_FOUND as I was trying to creating a linked USB drive: @Jens answer worked though. – SharpC Nov 13 '14 at 10:18
That worked for me too with vagrant - do NOT run vagrant up as admin. – Dan Dascalescu Dec 4 '14 at 18:11

I got it working after first starting VBox as Admin and then using a prompt with elevated privileges to create the vmdk.

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I also had to uninstall virtualbox and reinstall it, running the installer as admin. I had installed virtualbox with chocolatey before (when it did not work). – Frank Schwieterman Apr 13 '14 at 19:51
Thanks! In Windows 7 starting VirtualBox as Administrator then using an Administrator command prompt fixed the error I was getting creating a linked USB drive: – SharpC Nov 13 '14 at 10:21

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