Windows 10: Putting old disks into new system. Windows doesn't show them.

I've put together a new PC with an SSD and it's been working well for a couple of weeks. I wanted to put a couple of old drives out of another system into this one. One drive has a linux install (1TB drive), and the other one (2TB) was just files. I was hoping to to set up the system to dual-boot linux/windows. However, though the BIOS and Windows "sees" the drives, it hasn't assigned any drive letters to them. I wasn't expecting to be able to access the linux install, but I thought the other drive would "just work". Here's a screenshot from the disk manager.. If I right-click on the partitions shown all the options are greyed out (so I can't assign a drive letter etc). I haven't activated Windows 10 yet. Is this causing the issue? Or is there something else I could try?

submitted by /u/mraliasundercover
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:)

 

I put in a new SSD, copied my old disk using Samsungs SW, and want to make my original disk a second disk.

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