This function is not a crucial one, because Microsoft Word includes a built-in spell checker, which checks the spelling automatically. However, in some cases, it can be useful to activate the Execute spell checking for translation unit checkbox:
· When the computer is slow and the automatic spell checker is not active for speed reasons
· When the active document contains too many spelling mistakes so that it is automatically de-activated by Microsoft Word itself
· When you want to make sure that the spelling is okay directly after editing a TU.