Autocorrect for bloggers for WordPress on windows

I have started out with blogging and I am a software developer as well. I was wondering is there any auto correct for bloggers on WordPress on windows.

As I am not a native English speaker there are times when the red-line appears at the bottom of a few words that aren't capitalized or misspelled.

Yes I can right click and choose the correct word but I would love it if there was a way that a software would auto-capitalize the letter "i" every time I typed it.

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