Spellcheck no longer works - failed to create Settings page

Unfortunately I did a Windows 10 update and Trados update at the same time, so not sure what is causing the problem.

 

But if I go to File > Options > Editor > Spelling, I get a pop-up error window that says "Failed To Create Settings Page". 

 

I tried to rename SpellCheck under AppData/Roaming/SDL and starting Trados again, but no luck :-(  Spellcheck does not work.

 

Help!!!

 

Vincent