insert a spelling correction

When I misspell a word the correct appears in a box. The correct spelling appears in a box. What is the key stroke to make insert the word in the box?

What boxes do you refer to?

When I am typing a word and I type a few letters, example “Novem”, a small box appears that is the word , “November” which I am typing.

What keystroke do I use to make it insert the word?

Normally, simply pressing the space bar is OK.

It doesn’t work on my Windows 10 system. When I press the space it just leaves what I have typed, half a word

Any other suggestions?

Then try Enter.