How to delete a OEM partition in Windows 7


If you get the error:

Virtual Disk Service Error:
The operation is not supported by the object.


Make sure you’re disk is not a dynamic disk.
In mine case the disk was a dynamic disk en I converted it back to a basic disk, by using diskpart:
select disk 0
convert basic


After converting the disk back to a basic disk I followed the steps on

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  1. rainabba says:

    That makes no sense though because you can’t convert to basic unless the disk is empty and if it’s empty, you’re not trying to delete any partitions.

  2. Mike says:

    Awesome, saved my day. I had an OEM partition I was trying to delete. I had to delete all the other partitions before this would work.