Not Being Able to Find Python Installation using Script

So I've just downloaded Atom to try out for writing my Python code and have encountered an issue. Once I download script I try and select python as my interpreter on the bottom right, but when I try and run my test code the error: "Python was not found but can be installed from the Microsoft Store.". I've been trying to find a solution by digging around here but either it doesn't work or I have no idea what they're talking about. I've tried re-installing python with PATH but to no avail. Sorry if you guys get these types of questions a lot. Thanks!