UserAgent: Mozilla/5.0 (X11; CrOS x86_64 8530.81.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.103 Safari/537.36
Platform: 8530.81.0 (Official Build) stable-channel reks

Steps to reproduce the problem:
1. download something(e.g. picture)
2. Update the chromebook(mine is a lenovo)
3. it will be gone

What is the expected behavior?
for all my files to stay there

What went wrong?
all my files were gone from my chromebook

Did this work before? No 

Chrome version: 53.0.2785.103  Channel: stable
OS Version: 8530.81.0
Flash Version: Shockwave Flash 22.0 r0

It is annoying because i had to get it again so please fix it