I do have a good amount of knowledge on storage drives, but this is confusing me on a whole other level. I purchased this 16gb flash drive like 2 years ago with the intention to use it as a way to move things when I needed it, but it's become my personal linux drive and windows installer when ever I happen to need it. After I used it for a windows 10 installation on my friends computer I went home and didn't think much of it. Now, fast forward to today, I'm trying to use it for a windows 7 installation and the drive is about 29gb, and it's also a functional 29gb. Is there any explanation for this, or could I have possibly been sold a flashdrive with that space and didn't know the entire time. It came in a 16gb box from Walmart about 2 years ago.