Windows 10: Why is my lap top translate my language of my choice Japanese into English without my...

My lap top strated translating the Japanese channels I was viewing and typing comments on them in Japanese but suddenly change to English ?Sometimes mid sentences.It started couple of weeks ago and not constantly but only occasionally.I tried to change language settings and seems to succeed but it happens againsuddenly.Also It slowed down dramatically since a week or so ago. I have MacAfee protection which tells me my computer is virus free as recent as 3days ago and yet slowing down hasn't improved. What could be causing these problems ?

:)

 

Trying to play an English translated Japanese game and failing.

Open Control Panel. At top right if the View is set to 'Category' you will see a 'Clock and Region' section. Click on it then select 'Region', this is where you can change the system locale.

 

Installed Translator for Microsoft Edge but language is in Japanese

I bought a Japanese laptop a while back and did the procedures to change the native language to English. Some programs and features are still in Japanese but it doesn't bother me much. One feature that I want to use is the Translator for Microsoft Edge
but it is in Japanese by default. How would I change it to English?

 

Trying to play an English translated Japanese game and failing.

Right, so, I was poking around for another game similar to the one I have been playing lately. Found another that it's native language is Japanese but it's been translated into English. It keeps crashing with a file error and while trying to find a way to contact the dev I found this at the bottom of the game's page

"---------------------------------
[Regarding File Issues]
While the game contents that the player can see on the surface have
been translated into English, within the underlying system there are
filenames and program code that contain Japanese language characters.
As with most products, Japanese language / region settings must be
correctly applied before downloading, extracting and playing the game.
http://www.dlsite.com/ecchi-eng/faq/.../mid/7/did/296 "

And this is true, the files are in Japanese. So I click on the above link and it says for Win 8 / Win 10 (I am Win 10) it says I need to set my System Locale to Japanese. Doing so won't change my display language but will let Windows work with the files. And to do so I need to go to Control Panel -> Clock, Language, and Region, and click System Locale, and from there change it to Japanese. Well, I don't have a "Clock, Language, and Region" option in my Control Panel but I do have a Language option. But adding Japanese to that didn't fix the file issue. So... Anyone out there know how I may play this game?