Hi Thomas Svejcar,
Thanks for your post. I understand how confusing it can be when Windows switches languages unexpectedly. Firstly, please make sure you already tried the steps below:
Step 1 – Set Windows display language to English
- Open “Settings” > “Time & language” > “Language & region”
- Under “Windows display language”, select “English (United States)” (or your preferred English variant)
- If English is not listed, click “Add a language”, add English, then set it as the display language
- Sign out and sign back in when prompted
Step 2 – Make English the primary language
- In “Language & region”, under “Preferred languages”
- Select English > “Move up” so it’s at the top
- Remove Spanish if you don’t need it
Step 3 – Check keyboard and regional settings
- Go to “Settings” > “Time & language” > “Region”
- Set “Country or region” to your correct location
- Under “Administrative language settings”, confirm formats are also set to English
Additionally, please try these steps if the issue persists:
1, Check “Language override”
Windows can keep English installed but still force Spanish via override.
- Go to “Settings” > “Time & language” > “Language & region”
- Under “Regional format”, click “Change formats”
- Set “Language for non‑Unicode programs” / “Format” to English
- Restart the PC
2, Copy English to system & sign‑in screen
If only system menus / sign‑in screen are Spanish, this is the fix.
- Open “Control Panel” > “Region”
- Go to “Administrative” tab > “Copy settings…”
- Check:
- “Welcome screen and system accounts”
- “New user accounts”
- Confirm and restart
3, Check Microsoft account language sync (often overlooked)
If you sign in with a Microsoft account, account language can re‑apply after updates.
- Go to your Microsoft account profile via https://account.microsoft.com
- Check Language & region preferences
- Set them to English, save changes
- Restart and sign in again
Official account guidance: Change your country or region in Microsoft Store
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.