Windows 10 - "Open With" - Sublime Text. I put a tick "Always use". However, the next time you open it, it opens through notepad?

Question

Windows

I want .txt files to open via SublimeText by default. I'm chewing on a .txt file with RMB - "Open with" - SublimeText. Check the "Always use this app" checkbox. However, the next time you open the file, it opens again through notepad. Why is that and how do I change it to SublimeText?
On WordPad it turns out to change, but on SublimeText - no.

Answer 1

Solved the problem with this tool.
https://www.binaryfortress.com/NotepadReplacer/

Answer 2

File associations through the control panel.