Deleting collections already done

Based on a Google search, the steps below might work - warning, you'll be doing so at your own risk though!

1) Go to File Explorer for C: drive

2) Search for "DownloadedPuzzles" (don't type " and it isn't case sensitive)

3) Your list of puzzle collections should be there.

4) Delete the collections you are finished with.

If you mean delete DLC you have bought then Install disc 2 then use disc one of the ultimate collection then yes you can do that, Thats what I done.

There are some games that when I'm done I'm done. They get deleted and I don't go back. There are other games that I may go back to some day and I don't feel like using my Data Cap to redownload. Master Chief collection is a perfect example of that.

Most of the time I play it, beat it (or get bored) and delete.

havent done this myself, but found it on activision

From the Xbox From the Xbox LIVE Dashboard, go to Settings and select System

Select Storage

Select Hard Drive

Select Games and Apps

Select Modern Warfare 3

Find and select "Collection 4: Final Assault Marketplace Content"

Select Delete

Launch Modern Warfare 3 and you should now be able to access the Collection 4 content

This will delete a key that is required to download DLC Collection 4, but will not delete the content. The key can be re-downloaded from the Xbox LIVE Marketplace if you need to re-download all of the DLC Collection 4 content at a later date.

support.activision.com/.../Cannot-Access-MW3-after-Collect ion-4-Download

Yep, already done all that troubleshooting, even deleted and redownloaded, nothing!