I had to have my HD replaced recently and MS Windows reinstalled but now everything is in Thai! Grrrr! 

How can I change the language in MS Word, Powerpoint and Excel as well as Chrome back to English? 

Thanking you in advance. 

Install an English language version of Office and Chrome.

 

If Windows itself is in Thai, you'll need first to reinstall Windows, this time with an English language version.

For the Microsoft products, I think you can download and English language pack.

You could take it back to the shop you bought the HD from and get them to do it.

Sent from my SM-J700F using Tapatalk

http://www.youwindowsworld.com/en/downloads/desktop-applications/office-suites/microsoft-office-2013-language-pack-x64-in-english

 

No idea what version of Office you have, but you can download most versions.  

 

Agree maybe best to take it back and ask the person that install the programs on the new HD to make/put it in English 

this help - https://www.howtogeek.com/232659/how-to-change-the-display-language-in-windows-10/

1 hour ago, carlyai said:

For the Microsoft products, I think you can download and English language pack.

 

In my experience (which is admittedly not recent), the language packs for Office are incomplete, leaving parts of the text in Thai.  They are also not free.  Far better I think to do a clean install in English.