Windows 10: Installing Windows 10 on an External SSD

I Looked everywhere I could think of for specific instructions to help with this. I have a Lenovo Legion Y520 Laptop and recently acquired a SanDisk Extreme Portable SSD that I intend to use for Gaming, I do not intend to boot my computer from this drive but would like to install Windows 10 on the drive so I can install my games from Steam on it. I Already tried formatting the drive and installing the Media creation tool, but I don't know if I have succeeded in those steps or not. Any help would be most appreciated.Thank you all for your time.

:)

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

Is it time for Windows 10 already?

Here's a good step by step guide on doing a fresh install.

How to clean install Windows 10 from a USB drive - Software - Feature - HEXUS.net

 

From Ubuntu, Installing Windows 10 on an external SSD

I've followed every post about this subject, but I feel like most breeze over details, so maybe I have a few misconceptions:

Steps to Problem:

1. Downloading the ISO file here: https://www.microsoft.com/it-it/software-download/windows10
   
2. Format external SSD to be NTFS
   
3. Install ISO onto external SSD using mkusb
   
4. Boot onto external SSD produces the windows 10 installation screen, but when I get past the language screen I get: "windows 10 A media driver your computer needs is missing. This could be a DVD, USB or Hard Disk driver"
   

Question:

• Do I need to install windows on a bootable USB instead of the SSD? How then can I demand the USB installation installs onto the SSD and not the main hard drive (which has Ubuntu)
  
• This error is usually seen for Windows 7 (missing usb3.0 drivers, but Windows10 comes with them, corrupted ISO, but I'm fairly sure the ISO is good)
  

I'm a bit lost as how to accomplish this. Some help in this regard would be swell. I have a laptop with Ubuntu (an internal SSD), and a blank external SSD (With the official Windows 10 ISO and an official product key), and want to get Windows on the external drive.