Some simple ways to type grave accents in MS Windows, depending on which version you use. The grave accent ` is next to the number 1 at top of keyboard
à, è, ì, ò, ù Ctrl+`, release and type letter;
À, È, Ì, Ò, Ù Ctrl+Shift+`, release and type letter
OR
Alt key + character code on the numeric keypad on right of keyboard (laptops will vary). Ensure that the NUMLOCK is on.
à Alt+133 or 0224
è Alt+138 or 0232
ì Alt+141 or 0236
ò Alt+149 or 0242
ù Alt+151 or 0249
À Alt+0192
È Alt+0200
Ì Alt+0204
Ò Alt+0210
Ù Alt+0217