Windows 10: Change default language

Have a clients PC, Windows 10 Home, that the default language was changed from French (Canadian) to English by a tech for troubleshooting here . (Florida)
They're going back home (Canada) and wants the default language restored to the French.
I'm not the original tech and plead ignorance since I've never done this.
So I can here.
Anyone have a step by step?
Pete

:)

 

change the language in windows 10 home single language or change the windows to windows 10 home

Hi
Nouralmatary,

Thank you for posting the query in Microsoft Community.

I do understand your concern, however I suggest you to try the below steps and change the language.

• 
  Go to settings
  
• 
  Time & Language
  
• 
  Region & Language
  
• 
  Add a language. Select your desired language. That can be UK-English or US-English.
  

Make it default by clicking on it and choosing "set as default". Go to options and download language pack.

Hope it helps.

 

Windows 8.1 update changed the language, can't change back

Maybe, these will help... it seems it is a common enough problem.

Language packs are no longer available after you upgrade to Windows 8.1

And, sort of the same here --> Add a language or keyboard

Quote from above MS web page:

Spoiler Download and install language packs
You'll need to download the language pack if you want to make a language your Windows display language (that's the language you see most often in Windows and apps).

• Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings.
  (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)
• Tap or click Time and language, and then tap or click Region and language.
• Tap or click a language that says Language pack available underneath, and then tap or click Options.
• Tap or click Download. The download process might take a while, depending on your PC and the size of the language pack.
  If you want to make this your display language, see the next section "Change your Windows display language".

Change your Windows display language
To change your Windows display language (that's the language you see most often in Windows and apps), first add a language, download and install the language pack, and then follow these steps.

• Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings.
  (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)
• Tap or click Time and language, and then tap or click Region and language.
• Tap or click the language that you want to set as your display language.
• Tap or click Set as primary to move the language to the top of the list. If the language can become your Windows display language, you'll see Will be display language after next sign-in appear under the language.
• Sign out and then sign back in to finish.

And here is some more info --> Add Language Packs to Windows

 

change language

Hi,

Let's change your system language by following these steps:

• Open Settings.
• Select Time and Language.
• Open Region and Language.
• Click Add a Language, and select the language that you want to use.
  
• Click the language that you added and select Set as default.

Update us with the outcome.