Can not debug with attach to process VS Pro 2017

I deployed my MVC project to IIS and now I need to debug code by attach process but it not work.
These are steps that I did to debug:

1. Run my solution with Visual Studio Pro 2017 as Admin
   
2. Debug -> Attach to process...
   
3. Attach w3wp.exe process
   
4. Restart my site in IIS Manager
   
5. Run my site in browsers to debug
   

After above steps, my breakpoints always warning:

The breakpoint will not current be hit. No symbols have been loaded for this document.

I can debug my code in the other PC with above steps but this way have problem with my laptop.
How can I fix this?
Thanks all.

I resolved my problem by:

1. Debug -> Options...
2. Uncheck at "Enable Just My Code"

I installed the newest Visual Studio Professional 2017 (15.8.5) to my laptop. In this version, above option is checked as default.