Keep your internal SSD and boot from cloned external SSD instead!

I discovered a way to boot a CLONED image of the internal nvme drive a little while ago which is good for those who do not want to open up their laptop and also maybe keep a bootable drive just in case something bad happens to the internal one. Virus, crash etc. Spoken to a lot of Razer owners since then who get very worried about replacing the internal drive that I thought it was a good time to repost for all the new owners out there, present and to come!