Copying secondary HDD to new m.2 SSD

[WeltraumJaeger]

Hi,

 

I recently bought a m.2 1TB SSD and want to use it to replace my old secondary 1TB HDD. My os is installed on a primary 250GB SSD. Can someone guide me through the steps to clone my hdd to my new ssd? I'm not familiar with terms like partition so the simpler the better. For info, I can see that my new SSD is unallocated in disk management (I don't know what that means but for some of you I think it will). I also want to use my old hdd for picture storage and stuff that I won't open often after the cloning.

 

Thanks in advance for you help,

Jaeger