Cloned Windows 10 to 4 TB M.2 SSD using Macrium Reflect, but there's unallocated space.

I'm using the 30 day free trial version of Macrium Reflect (Home). I cloned my C drive to the M.2 SSD (4 TB size), then realized it cloned the original drive (less than 1 TB in size) without extending to the full 4 TB of the SSD, meaning, the additional space of the M.2 SSD was unusable.

I've seen manual workarounds (like dragging and dropping the order of partitions, then hitting Extend) but still get an error that 2 TB per disk is the maximum? Is this really true? Why? How can I get the remaining 2 TB? I need 4 TB dedicated space for my work all on 1 drive, don't want files sitting around in other drives on the computer.

Also, when I booted from the new SSD, it worked, but ran into a bug where File Explorer would not let me right click on any drive as it would turn the mouse cursor into the spinning wheel. Can't X out File Explorer but can right click on the program and exit that way. I also named the new drive F but for whatever reason it is now showing up as G.

Should I just use another cloning software? If so, which? Thank you.

5 comments

2TB is only the maximum with 32-bit file systems. We're well beyond that.

From Windows, you should be able to go into disk management, right click the partition and choose "Extend Volume".
Check what type of partition table you are using MBR vs GPT.
- Thanks, I was able to fix this, and while the SSD shows up during BIOS for startup, only my other hard drives can boot up Windows. I can see the new SSD in BIOS (I set it to first priority) as well as Windows disk manager, and all the partitions / files / allocated size look fine.
  
  EDIT: I am running UEFI. I actually cloned an MBR disk (my current C drive) to a GPT target disk (the NVMe M.2 SSD). Perhaps this is causing the issue, and if so, how do I get around it? Note that the M.2 SSD is 4 TB, so I assume I need the disk to be GPT rather than MBR.
This has nothing to do with datahoarding. You probably had windows installed in legacy mode (mbr). There are ways to switch it to uefi(gpt) but with your limited knowledge its easier to backup and reinstall
Re-do your clone, clear the suggested layout in the bottom (target) box and drag down the partitions from the source drive - you should be able to drag the right edge of tha last partition in the target bi's to use all the free space.

I'm not in front of my machine at the minute but I've done this loads of times and that's about the gist of it 👍