how do you download games on a flash drive
up vote 1 down vote. 1  You plug in your flash drive. 2  Open Steam and from the menu. 3  Steam choose Settings. 4  Go to the Downloads tab on top. 5  Click on the button steam library folders. 6  Then Add library folder. 7  Choose the folder that your flash drive is mounted in. 8  Create a new folder and select it. 9  Close settings.p vote 1 down vote. 1  You plug in your flash drive. 2  Open Steam and from the menu. 3  Steam choose Settings. 4  Go to the Downloads tab on top. 5  Click on the button steam library folders. 6  Then Add library folder. 7  Choose the folder that your flash drive is mounted in. 8  Create a new folder and select it. 9  Close settings.