why does Asset/Files say I'm out of storage when I have NO files uploaded?

[#1]

Just uploaded new 2015 Creative Cloud, and after many minutes/hours of downloading, and NO personal files, I get a message that I have over 2 Gb of files in Assets/Files. Why, when I have not uploaded a single file yet?

[#2]

Just uploaded new 2015 Creative Cloud, and after many minutes/hours of downloading, and NO personal files, I get a message that I have over 2 Gb of files in Assets/Files. Why, when I have not uploaded a single file yet?

[#3]

Moving the discussion to File Hosting, Syncing, and Collaboration