1. Download and install switch me application.
2. Set the profile name of active account by click on create profile.
3. Now click on plus icon (+) at the top of windows.
4. Enter the new profile name.
5. Now user can easily switch between both the account.
Example: profile created in step 2 is admin and profile created in step 3 is sample . So, user can easily switch from admin to sample and vice verse. After setting dual profile user can easily start dual whatsapp and also make your device dual boot.