someone has found the solution to this one...
website is
bugs.chromium*org/p/chromium/issues/detail?id=374624
replace the '*' with '.' since site will not let me post links
solution is to delete a guid folder in the user subfolders...specifically:
C:\Users\<username>\appdata\roaming\microsoft\protect\<guid>
process may hang or immediately return, so test chrome again and if it takes less more than about 5 sec to start up then delete the folder again until it stops returning (usually may only come back once..although it did not return when I finally fixed this myself)