HELP First build, unactivated windows 10 on usb hdd

[GrimsAnarchist]

Please help me figure this out!

I've built my first system, but I ran out of money before buying a SSD. I only have a 4gb usb flash drive and a 750gb external usb HDD. I'm trying to figure out how to get Windows 10 to boot using the 750gb HDD until I can afford an internal SSD. I've downloaded the Windows installer onto the 750gb HDD because it said it requires >8gb of storage. I've gone into the bios and changed the boot order to usb but for some reason I cannot install the OS onto the same usb HDD and I'm wondering what will make this work.

I just want to be able to play some TF2 until I can afford the activation key, SSD, and games. 

Edited September 18, 2018 by GrimsAnarchist
Words..

[LinuxTek]

Download Ubuntu onto thumbdrive.

Disassemble external drive, take out harddrive. Put in your computer. Install Ubuntu.

 

Use it until you can borrow, buy a bigger thumbdrive...if you want Windows 10.

 

You can play Team Fortress 2 on Linux. 

 

Better frame rate under Linux than Windows

 

https://m.youtube.com/watch?v=dK7uEv8LTYU

 

[LinuxTek]

You won’t go back to Windows.