How to Delete OEM Partition

Here's a procedure to delete an OEM partition. Be careful when using this tool since it will remove all data saved in the partition where this command is used.

1. On the Start button, Run "diskpart" utility.
2. Make sure that you select the proper hard drive where the partition is to be removed from. So to display all available hard drives, type "list disk" then hit Enter.
3. Select the proper disk, type "select disk #" where # is the number (from 0 to 9 depending on how many disks are installed) of the disk you want to delete partition.
4. To view all partition in the selected disk, type "list partition" then hit Enter.
5. If you are sure that the selected disk is the one that you need to delete the OEM partition, you may now issue the delete partition, type "delete partition override" if there is only 1 partition or "delete partition 1 override" to delete the first partition.