Possible. Whether it is a good idea or not - it is for you to find out (as accessing external drive is often slower than having things on an internal HDD - AND also with the reason explained by Matthew Rummins answer).

1. Open File Explorer
2. On the left hand side - find the "Documents" - Right click and choose "Properties"
3. Click on "Location" tab, and simply click on "Move" and choose your USB drive and the particular folder you wanted the "Documents" folder to be redirected to.

Repeat the above for other default folders (Desktop, Documents, Downloads, Music, Pictures, and Videos)

Hope this helps

PS: Matthew Rummins beats me to it ... T_T

Possible. Whether it is a good idea or not - it is for you to find out (as accessing external drive is often slower than having things on an internal HDD - AND also with the reason explained by Matthew Rummins answer).

1. Open File Explorer
2. On the left hand side - find the "Documents" - Right click and choose "Properties"
3. Click on "Location" tab, and simply click on "Move" and choose your USB drive and the particular folder you wanted the "Documents" folder to be redirected to.

Repeat the above for other default folders (Desktop, Documents, Downloads, Music, Pictures, and Videos)