Your manager emailed you and asked to adjust permissions for the file important_file.txt, so that the user employee3 is no longer able to make changes to the file.
You are logged in as "administrator"
Object Name:
Group or user names:
Permissions for
Allow
Deny
For special permissions or advanced settings, click Advanced.
This permission is inherited from the parent object. Make changes here to override the inherited permissions.
You can take or assign ownership of this object if you have the required permissions or privileges.
Object Name:
Current owner:
Change owner to:
Object Name:
Group or user name:
 
Effective permissions:
You can't remove because this object is inheriting permissions from
its parent. To remove , you must prevent this object from inheriting permissions.
Turn off the option for inheriting permissions, and then try removing again.