Usb downloads 80% of games then says device full on a empty 2tb

This doesn't fix the problem Idk what to do

Is your console currently up to date? If so can you please cancel all downloads, and delete any partial downloads. This can be done as following:

1. On your console, go to settings, and then select System.
2. Select Storage, and then select your storage device.
3. Select the content type you’re trying to download.
4. Find the item you’re trying to download (may appear with a yellow warning icon).
5. If the item is listed, select the item, and then select Delete.

Do this for anything with that yellow icon. It can prevent other content from downloading properly.

Next also clear your cache on the console then try downloading again. While the download is in progress, do not use your console to do anything else, such as play a game. Using the console while downloading
content can cause the download to pause, stop, or time out.

Let us know how it goes!

How to clear the cache on Xbox 360

Hey xSniperLife163x, I install a lot of games and understand that's pretty frustrating. Have you recently tried reformatting the Storage device since the issue has occurred?

Here's an article that goes over the steps! Using USB Flash Drive as Xbox 360 Storage

Yeah and it still doesn't work I don't have too much storage and it's my only large drive.

Most of my stuff is on an external 2tb drive, which is about 30% full. The internal memory is practically empty.