Steps to reproduce the problem:
go onto my newest laptop which is an hp running windows 10 and enter settings 
2. i went into credentials and all my windows credentials are deleted that ive not deleted 
3. also under files it shows that some of my photos and media files are being sent to an sd card on samsung well non of my new devices are samsung only device i had samsung was the old chromebook2 by samsung and ive never set anything up for my media to go to that so i dont know?

What is the expected behavior?
i tried power washing chromebook2 and nothing happens it says that the chrome it uses has depreciated and im unable to fix that aswell qs the credentials that are now all old and outdated ive since changed google accounts but might be using the cell number to sync im not sure gave the chromebook to xbf after i had powerwashed it and didnt know it wasnt cleared so now all my devices are being hacked into remotelt bt him and i am not sure how to stop this action pls help me im desperate! 

What went wrong?
my chromebooks causing all of my other devices to become hacked into or remotely accessed i domt know how my xbf is doing it other than he is on same local network and i didnt know my old gmail was still on the old device aftergiving it yoo him ...

Did this work before? N/A 

Chrome version: 51.0.2681.4  Channel: dev
OS Version: 
Flash Version: 

im unsure of how to get into the chromebook now bc he has his account on it and i am unable to access it even though my google account is still connected to th edevice but it did say that the browser was deprictiated over n over and would not alow me to powerwash or delete certain files i felt where cauaing a problem?