An initial way of running Chrome as a secure separate user process allows code exploits to be kept in an isolated process including all downloaded files. You can also run other applications like Acrobat PDF Reader in this process for viewing PDF
net user Chrome AuthorDragon /ADD
runas /user:Chrome "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
What you should see :-
C:\Windows\system32>net user Chrome AuthorDragon /ADD
The command completed successfully.
C:\Windows\system32>runas /user:Chrome "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
Enter the password for Chrome: