Windows 10: Macrium Reflect: No operating system found after partition cloning

My objective is to have a windows 10 clone on a different disk in order to be able to continue working immediately in case of a disk failure.

1)Using Macrium Reflect in Windows 10 (1909), I cloned the windows partition (which is on a GPT disk) to partition J found on another disk (which was originally MBR and I converted it to GPT in Disk Management). I booted from the new disk and took "no operating system found, press ctrl+alt+del".

2)Using Macrium Reflect Rescue Media from a bootable usb stick, I restored an mrimg containing the windows partition to J (deleting the clone created in the previous step). Again, I took "no operating system found, press ctrl+alt+del".

3)I booted from the original disk and the new disk in Disk Management was saying "The disk is offline because it has a signature collision with another disk that is online" (I fixed it with right click > online).

Why 1 and 2 didn't work?
Thanks

:)

 

Cloning an external HDD

Doing a clean Install while switching hard drive is always recommend due to the fact that the hardware configuration of each PC is different.

What I suggest is to Clone the other data partitions except C:

Use Macrium reflect a freeware for this.

Cloning a disk - KnowledgeBase - Macrium Reflect Knowledgebase

 

Clone To A Larger SSD With Macrium Reflect

I guys.

I am about to clone to a larger SSD, and I don't want to leave any unallocated space.
There are 3 partitions there. System Reserved, Operating System and a Recovery Partition on the right which the Windows installer must have created as I built the computer myself. Do I need that Recovery Partition? If I do, can I put the operating system on the right so I can extend it to maximum to avoid unallocated space?

The last time I did a clone, I had to use a third party partition tool afterwards to extend unallocated space because my OS partition wasn't adjacent to the unallocated space because of the Recovery Partition.

Below is a screenshot of the drive in Disk Management, and the Reflect clone window. Do I need that one on the right?









MiniTool says the Recovery Partition can be deleted safely.
I don't even know what it would contain on my drive.

 

Access to cloned HD

Hi Dave,

I used Macrium Reflect (MR) to clone the SSD. It is quite possible the cloning operation did not succeed in creating a bootable drive. I have used it successfully in the past for several clones. How can I determine

• if the boot instructions came over with the clone?
• or should I try cloning the drive again?

This computer is a Dell refurbed workstation and I am uncertain if it was set up in a RAID configuration although it came with only 1 rotating hard drive.