After many intents to solve this problem, I received this message:
External help is not available because Microsoft Document Explorer is not installed. To view help, change your Help preferences to use the Integrated Help Viewer or Install Microsoft Document Explorer
I tried to do it at Tools->Options->Help->General->
Show Help usaing: Integrated Help Viewer
Search Result per page: 20
Show Topic abstracts: checked
Reuse Topic window: checked
Highlight search termn: checked
I had to tried many times until SSMS wanted let me to do it.
Now the problem has been partially solved, when I press F1 the SSMS does not hang, but when I still try to change something in the help options, then chunks..