regex - Removing lines with less than 10 characters

Question

I work under Windows, I'm trying to clean a text I'd like to study, what's the right regex in Notepad++ to remove lines which are <= 10-character-sized.

Answer 1

探す：

^.{0,9}((\r?\n)|$)

空白に置き換えます (つまり、何もありません)