Windows – Getting “error loading operating system” when I start a VM. Worked fine prior opening with VirtualBox

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I'm using VMware Workstation 7.x on Windows and I'm getting this error when I start my VM:

error loading operating system

That started to happen when I tried to load the VMDK file into the program VirtualBox. Prior to this, it ran just fine. Ever since then I have been unable to start it in VMware Workstation 7.x

I've already tried to repair the VMDK file but when I do it tells me there are "no errors found". I used

vmware-vdiskmanager.exe -R "c:\blah\my vm disk.vmdk"

Anyone else have any more suggestions I could try? It's a 300+ GB VM and I don't want to lose it.

Best Answer

Did you use the VMWare converter? If so it should give you two options:

  1. Choose the volume and then create the vmdk
  2. Maintain the Disk Size.

I believe you want the second options.

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