samsung magician windows 10 not recognized

If you can't see the drive even under Disk Management, NVMe to USB adapters/enclosures are still new on the market, and I haven't seen any established manufacturers like StarTech or SIIG offer them yet, so it wouldn't really surprise me that you're having trouble. The trick is to drag the source partitions down to the destination one at a time, working left to right, then after dragging down a partition you want to resize, do that before dragging down remaining partitions.

Take a look at this guide from Macrium for how to do that, specifically Steps 4 and 5. Also, if the 970 Evo is a different capacity than your current SSD, then it's easiest to resize the partitions when 'staging' the clone operation, not afterward. After that, your system should boot normally. Just make sure you create the bootable Rescue Media beforehand because if the system doesn't boot after you perform the clone and install it internally, you'll want to boot from Rescue Media instead and run the 'Fix Boot Problems' routine. If you can see the drive under Disk Management, then try another tool like Macrium Reflect Free to perform the clone operation instead.

If you can see it there, then it's working fine, although Samsung Magician might not work with drives connected through USB adapters/enclosures. You'd have to initialize, partition, and format that drive for it to show up under Windows Explorer, but there's no point doing that if you want to clone an existing drive over to it anyway. When you say your system is 'not recognizing' the 970 Evo, where are you looking for it? If you're expecting it to just pop up in Windows Explorer, that won't immediately happen because the 970 will be an empty, uninitialized device.

Samsung magician windows 10 not recognized