Hyper-V: How to Convert IDE to SCSI on a Guest VM

Plan A:

1. Clone the existing Guest VM as a full backup
2. While having target Guest VM powered off, edit its VHD file > change ddb.adapterType = “ide” to ddb.adapterType = “lsilogic”
3. Remove the drive from the Guest VM with the “DO NOT remove from virtual machine and delete files from disk” option
4. Add a new hard disk > choose the “Use an existing virtual disk” option > select the targeted hard disk

Plan B:

1. Revert changes by replacing the original VM with the cloned VM.

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