Windows 10: Windows 11 change format and language at every boot

I have the exact same problem as this user: Regional format keeps resetting back to US every time PC is booted up. - Microsoft CommunityMine changes from the language i set back to USA all by itself at every boot.. how can this be prevented ?I am on home pc.

:)

 

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

 

Changing language in Windows 10

Hi,

If you want to change the Operating system language I suggest you to follow the below steps and check if it helps.

• Insert the installation USB drive and boot Windows 10 from it.
  
  If you don't have one, you can Create an installation Media.
• In the ‘Windows setup’ page select the ‘language to install’, ‘Time and currency format’
  and the ‘keyboard or input method’ and click on ‘next’.
• Please select your preferred language and then follow the onscreen instructions.

Hope this information is helpful. Please do let us know if you need further assistance, we’ll be glad to assist you.

 

Changing Time Format

Hi Mary,

There's a possibility that the set up time format in your computer Basic Input/Output System (BIOS) is military time. To have this checked, you can try to reset the time of your computer through Control Panel. See the steps below on how to do
so:

• Open Control Panel > Clock, Language, and Region >
  Change date, time, or number formats. This would open the
  Region window.
• From there, click on Additional settings at the bottom part. It will open the Customize Format.
• Click Reset; then, OK.

The steps should work; however, if not, we suggest that you contact manufacturer and have the BIOS time checked.

Let us know what happens after doing the suggestions .