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I have successfully created three VMs in Hyper-V running on the same server and they are all running without issue. &nbsp;The Winsows 2008 server has over 700GB disk space and 16GB RAM of which only 13GB RAM and less than 400GB disk space have been allocated.<br />
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I created a fourth VM today with a unique name and received the following errors when I tried to start it. &nbsp;All the research I've done points back to having two VMs / VHDs with the same name but this is absolutely not the case. &nbsp;I have deleted the VM and VHD twice and recreated under different names and continue to get the same errors.<br />
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&nbsp;'NDUT' failed to start.<br />
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Microsoft Emulated IDE Controller (Instance ID...: Failed to power on with Error 'The process cannot access the file becasue it is being used by another process.<br />
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Filaed to open attachment 'E:'. Error: 'The process cannot access the file becasue it is beingg used by another process.&quot;<br />
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Any ideas?<br />

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I have successfully created three VMs in Hyper-V running on the same server and they are all running without issue.  The Winsows 2008 server has over 700GB disk space and 16GB RAM of which only 13GB RAM and less than 400GB disk space have been allocated.

I created a fourth VM today with a unique name and received the following errors when I tried to start it.  All the research I've done points back to having two VMs / VHDs with the same name but this is absolutely not the case.  I have deleted the VM and VHD twice and recreated under different names and continue to get the same errors.

 'NDUT' failed to start.

Microsoft Emulated IDE Controller (Instance ID...: Failed to power on with Error 'The process cannot access the file becasue it is being used by another process.

Filaed to open attachment 'E:'. Error: 'The process cannot access the file becasue it is beingg used by another process."

Any ideas?


Newly created fourth VM in Hyper-V won't start

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.