Describe, in your own words, what that video is telling you to do.
From what I can remember from the video. You first have to put your new ssd in the enclosure and then download macrium
Then initialize the new ssd using disk management and make sure GPT is selected
Then do the entire cloning process where you move the old ssd information/c drive onto the newer external ssd within the enclosure.
After that you would have to remove the old ssd from your pc and then put in the new ssd.
Everything should work perfectly fine after doing all of this.
And to add the rest of the storage you could use macrium to do so.
Sorry Im not the best at explaining but the guy in the video made things very simple and I just wanted to make sure this was a correct way to transfer old ssd info onto a new one. Since my ssd contains all the important things such as windows.