Is it possible for Windows to work with two disks, and the second as a continuation of the system one?

Question

Windows

When I bought a laptop, it had an NVMe M.2 SSD, later the memory was not enough and I bought another of the same SSD. The computer supports RAID, I thought to combine both disks in RAID 0, but before that, clone the system to the third HDD. In general: system cloning on HDD; creating a RAID 0 with two SSDs; after, cloning back to the RAID disk.
I tried different methods and programs: Acronis, MiniTool, robocopy, but it didn't work out. Free Acronis (I didn't want to buy twice) didn't copy GPT; MiniTool threw a copy error (my opinion, due to BitLocker) robocopy also. And so I came back to the system. Is it possible to increase the system disk with another disk without resorting to the above method?

Answer 1

It is possible without a raid. Move the users or program files folder, or whatever you have heavy to another drive, and make a symlink in the old place .

Answer 2

Yes , you can shove the entire D:\ drive into a folder on the C:\ drive.
Try mklink via console:
mklink /d c:\diskD d:\
Not quite what you're asking. But IMHO this is the simplest and most stable option. After all, if disks are glued together in a magical way, then it is not clear how the system should behave if one of them fails. And if they have different speeds, then you yourself choose what disks to place on which. True, moving the entire Program Files in this way will not be easy, but that's another story.