How to Powerwash a Chromebook

Factory reset your Chromebook 
 
 Sign out of your Chromebook. 
 Press and hold  Ctrl  +  Alt  +  Shift  +  r . 
 Select  Restart . 
 In the box that appears, select  Powerwash    Continue . 
 Follow the steps that appear and sign in with your Google Account. Note : The account you sign in with after you reset your Chromebook will be the  owner account . 
 Once you've reset your Chromebook:
 
 Follow the onscreen instructions to  set up your Chromebook 
 Check if the problem is fixed