If you've misspelled "installaton", don't worry! The correct spelling is "installation". Often, misspelled words can be corrected by paying attention to the proper arrangement of letters. So, next time, remember to double-check and make sure you include the letters "i", "n", "s", "t", "a", "l", "l", "a", "t", "i", "o" and "n" in the right order.