How to disable notepad++ autocomplete

According to this link:

This feature is disabled by default, but a quick trip to the Preferences will get you using the new auto-complete feature in no time at all. Go to Settings -> Preferences, and switch to the Backup/Auto-competion tab. At the bottom of that screen you’ll see where you can enable auto-completion, and you can optionally turn on the “show function parameters” feature as well. What’s that do? Here’s an example of me using a PHP function, and you’ll notice that it gives me a friendly reminder of the parameters the function takes:

Keep in mind this is only supported in Notepad++ 5.0 or later...

Unfortunately notepad++ doesn't do regex multipliers so you have to do a regex search (Search -> Find -> Search Mode = 'Regular Expression') for:

\w\w\w\w\w\w\w\w\w\w\w\w\w\w+

Each '\w' is a word character (not spaces or punctuation ect.) and the last '\w+' means that it should find one or more of them so the expression mean 14 or more word characters.