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I have Virtual Box installed on base OS RHEL 5.5. I am using Windows 7 as a VM image on Virtual Box. While transferring a folder of 600MB on Windows I got a Virtual Box error saying Memory limit outside limit and then it hanged. I restarted my Base OS(RHEL 5.5), when i tried to launch the Windows 7 image I'm getting the following error message

   Start tag expected, '<' not found.
   Location: '/opt/VirtualBox/VMs/Machines/Windows 7/Windows 7.xml', 
   line 1 (0), column 1.
   /home/vbox/vbox-3.2.12/src/VBox/Main/MachineImpl.cpp[679] (nsresultMachine::registeredInit()).
   Result Code: 
   NS_ERROR_FAILURE (0x80004005)
   Component: 
   VirtualBox
   Interface: 
   IVirtualBox {3f36e024-7fed-4f20-a02c-9158a82b44e6}

Please help me debug this error as deleting the VM image and installing a new one is not an option as I'll lose all my data.

EDIT 1:

I tried creating a new VM using existing disk files. The error i'm getting is..

 new VM

The disk space is ..

enter image description here

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  • Can you open the file given by the "Location" in a text editor? Perhaps post it, or at least the first few lines.
    – heavyd
    Jan 30, 2015 at 7:56
  • The Windows 7.xml file is empty..Is it possible that all the file content got deleted??
    – Lucy
    Jan 30, 2015 at 7:58
  • Looks like the file got corrupted in the crash. You should be able to recreate the VM and use the existing disk files (look for *.vdi or *.vhd)
    – heavyd
    Jan 30, 2015 at 8:04
  • Could you guide me how to do that
    – Lucy
    Jan 30, 2015 at 9:31
  • In VB create a new VM. Give it a name and select Win 7 as the OS. When it asks about a hard drive, select "Use an existing virtual hard drive file". Select the file /opt/VirtualBox/VMs/Machines/Windows 7/Windows 7.vdi. Then let the Wizard finish, using defaults
    – heavyd
    Jan 30, 2015 at 17:46

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