It is essential when doing writing that you have some way to check your spelling errors. Especially if your someone like me that makes them frequently.
(setq ispell-program-name "C:/SGZ_Pro/z-Apps_Drivers/Hunspell/hunspell-1.3.2-3-w32-bin/bin/hunspell.exe")
M-x flyspell-mode
Now emacs will highlight the words you misspelled and with [s
you can go backwards in misspelled words and with ]s
You can go forward in misspelled words. Then z= to give a prompt of correct words that can be used to replace the misspelled words