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Persistent issue with corrupted Windows language packs in Windows 11

finddelight 20 Reputation points
2025-07-09T11:01:36.9233333+00:00

I’ve run into a persistent issue with Windows language packs. Despite installing English (US) and setting it as the system language, the interface remains mostly in Polish, with only a few random lines in English scattered throughout the system. The same problem occurs when trying German or other languages— the same handful of elements switch, while the bulk remains in Polish, even after fully removing the Polish language pack.

At this point, I suspect the only reliable fix would be a full reinstall using an English ISO. However, that’s a bit more than I can take on right now. Fortunately, this mostly affects the system UI—programs and apps display in English without issue, so daily usage remains manageable.

Just sharing here in case others have experienced the same thing or found alternative solutions.2025-07-09_12-56-47

2025-07-09_12-55-41

2025-07-09_12-57-34

Windows for home | Windows 11 | Input and language

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Chen1018 13,875 Reputation points Independent Advisor
2025-07-14T12:06:36.1366667+00:00

Hi Jack,

Thank you for your kind message, and I truly appreciate the clarity and patience you've shown. You're absolutely right this sort of “hybrid” system language issue can happen when Windows updates or installs over a non-English base system, and sadly, language packs sometimes don’t fully override the original system language without a fresh install from an English ISO. It’s great to hear that your programs work fine in English and you’ve found a way to live with it for now that’s a smart and pragmatic approach. When you're ready in the future, reinstalling using an English ISO would indeed give you a clean, consistent language experience across all menus and system features.

Wishing you smooth sailing ahead and thank you again for being so gracious.

Warm regards,

Cherrelyn

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  1. Kelvin Dean 1 Reputation point
    2025-07-24T00:46:40.45+00:00

    I had the same issue back in 2014-15 with my Windows Phone, specifically the Samsung Ativ S. Despite installing Afrikaans, Basque, Swahili, and a few others and setting each of them as the system language, the Windows UI remains mostly in English, with only some random lines in those languages scattered throughout apps and websites. The same problem occurs when trying Icelandic or other languages— the same handful of elements switch, while the bulk remains in English, even after fully removing the Icelandic language pack.

    Why is this? The exact options for display languages and supplementary fonts depend on three things:

    • Device manufacturer
    • Market of purchase
    • Carrier or mobile operator (cellular variants)

    While you might think these restrictions are limited to Windows Phones, that's not quite true. These restrictions apply to Windows 8 and newer PCs since the Windows PC and Phone/Mobile operating systems share the same Windows NT kernel.

    With that being said, I have a few questions to ask.

    1. What is the make and model of your PC? (And if it's a cellular variant, what is your carrier?)
    2. What Windows edition are you using?
    3. What market did you purchase your PC from? European markets support a wide variety of languages, including Polish. Some device manufacturers and wireless carriers may be generous in supporting all of them (most of them available) for download, but others can be quite strict.
    4. Did you copy your settings to the welcome screen and system accounts after changing the language?
    5. Does this apply to all downloaded languages or only some of them? Since you mentioned Polish, can you try it with other languages like Bulgarian, Croatian, or any other European language?

    Let me know when you are ready. In the meantime, here are the supported languages.

    Language Availability

    Display Languages

    As always, display languages are separated into two types: MUIs and LIPs.

    MUI Packs

    There are 43 different MUI packs in Windows 11. Five more (Basque, Catalan, Galician, Indonesian, and Vietnamese) were added, all of them transitioning from LIP to MUI status.

    Name Native Name English Name
    ar-SA العربية Arabic
    bg-BG Български Bulgarian
    ca-ES Català (Espanya) Catalan (Spain)
    cs-CZ Čeština Czech
    da-DK Dansk Danish
    de-DE Deutsch German
    el-GR Ελληνικά Greek
    en-GB English (United Kingdom) English (United Kingdom)
    en-US English (United States) English (United States)
    es-ES Español (España) Spanish (Spain)
    es-MX Español (México) Spanish (Mexico)
    et-EE Eesti Estonian
    eu-ES Euskara Basque
    fi-FI Suomi Finnish
    fr-CA Français (Canada) French (Canada)
    fr-FR Français (France) French (France)
    gl-ES Galego Galician
    he-IL עברית Hebrew
    hr-HR Hrvatski Croatian
    hu-HU Magyar Hungarian
    id-ID Indonesia Indonesian
    it-IT Italiano Italian
    ja-JP 日本語 Japanese
    ko-KR 한국어 Korean
    lt-LT Lietuvių Lithuanian
    lv-LV Latviešu Latvian
    nb-NO Norsk bokmål Norwegian Bokmål
    nl-NL Nederlands Dutch
    pl-PL Polski Polish
    pt-BR Português (Brasil) Portuguese (Brazil)
    pt-PT Português (Portugal) Portuguese (Portugal)
    ro-RO Română Romanian
    ru-RU Русский Russian
    sk-SK Slovenčina Slovak
    sl-SI Slovenščina Slovenian
    sr-Latn-RS Srpski Serbian (Latin)
    sv-SE Svenska Swedish
    th-TH ไทย Thai
    tr-TR Türkçe Turkish
    uk-UA Українська Ukrainian
    vi-VN Tiếng Việt Vietnamese
    zh-Hans-CN 中文（简体） Chinese (Simplified, China)
    zh-Hant-TW 中文（繁體） Chinese (Traditional, Taiwan)

    LIP Packs

    There are 45 different LIP packs in Windows 11. You may notice some of them weren't carried over from Windows 10.

    Unlike MUI packs, these languages can only be installed through Settings or the Microsoft Store. They are no longer available via OOBE.

    Name Native Name English Name
    af-ZA Afrikaans Afrikaans
    am-ET አማርኛ Amharic
    as-IN অসমীয়া Assamese
    az-Latn-AZ Azərbaycan Azerbaijani
    be-BY Беларуская Belarusian
    bn-IN বাংলা Bangla (India)
    bs-Latn-BA Bosanski Bosnian
    ca-ES-valencia Català (Espanya, valencià) Catalan (Spain, Valencian)
    chr-US ᏣᎳᎩ Cherokee
    cy-GB Cymraeg Welsh
    fa-IR فارسی Persian (Iran)
    fil-PH Filipino Filipino
    hy-AM Հայերեն Armenian
    ga-IE Gaeilge Irish
    gd-GB Gàidhlig Scottish Gaelic
    gu-IN ગુજરાતી Gujarati
    hi-IN हिन्दी Hindi
    is-IS Íslenska Icelandic
    ka-GE ქართული Georgian
    kk-KZ Қазақ тілі Kazakh
    km-KH ខ្មែរ Khmer
    kn-IN ಕನ್ನಡ Kannada
    kok-IN कोंकणी Konkani
    lb-LU Lëtzebuergesch Luxembourgish
    lo-LA ລາວ Lao
    mi-NZ Māori Māori
    mk-MK Македонски Macedonian
    ml-IN മലയാളം Malayalam
    mr-IN मराठी Marathi
    ms-MY Melayu Malay
    mt-MT Malti Maltese
    ne-NP नेपाली Nepali
    nn-NO Norsk nynorsk Norwegian Nynorsk
    or-IN ଓଡ଼ିଆ Odia
    pa-Guru-IN ਪੰਜਾਬੀ Punjabi (Gurumukhi, India)
    qu-PE Runasimi Quechua
    sq-AL Shqip Albanian
    sr-Cyrl-BA Српски (ћирилица, Босна и Херцеговина) Serbian (Cyrillic, Bosnia & Herzegovina)
    sr-Cyrl-RS Српски (ћирилица, Србија) Serbian (Cyrillic, Serbia)
    ta-IN தமிழ் Tamil
    te-IN తెలుగు Telugu
    tt-RU Татар Tatar
    ug-CN ئۇيغۇرچە Uyghur
    ur-PK اردو Urdu
    uz-Latn-UZ O‘zbek Uzbek

    Incompatible Languages

    The following languages were removed in Windows 11 for the time being (irrespective of the OEM restrictions). If you use any of these languages in Windows 11, you may experience a mixture of languages in the UI.

    • Bangla (Bangladesh)
    • Central Kurdish
    • Hausa
    • Igbo
    • K'iche'
    • Kinyarwanda
    • Kyrgyz
    • Mongolian
    • Northern Sotho
    • Persian (Afghanistan) - Dari
    • Punjabi (Arabic, Pakistan)
    • Sindhi
    • Sinhala
    • Swahili
    • Tajik
    • Tigrinya
    • Tswana
    • Turkmen
    • Wolof
    • Xhosa
    • Yoruba
    • Zulu

    It's unclear whether any of these languages will make it to Windows 11 by the time Windows 10 reaches end-of-life on October 14. This could be a problem if those language packs are removed by the time Windows 11 25H2 comes.

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  2. finddelight 20 Reputation points
    2025-07-14T11:46:13.6366667+00:00

    If anyone’s run into this language pack issue—or has found a workaround that doesn’t involve a full reinstall—I’d love to hear your experience.

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  3. Chen1018 13,875 Reputation points Independent Advisor
    2025-07-09T11:39:47.71+00:00

    Hi there,

    I'm Cherrelyn, I'm here to help and I understand how frustrating it is when your language settings aren’t fully applied, especially after multiple attempts.

    Please try these suggestion:

    1. Go to Settings > Time & Language > Language & Region
    2. Click Add a language, search for English (United States) or your preferred variant, and make sure to check “Set as my Windows display language”
    3. Once installed, click the language > Language options > ensure Language pack and Handwriting/speech are fully downloaded
    4. Go back and click the language again, then choose Set as default
    5. Restart your PC

    If parts of the system still appear in Polish, try removing Polish completely from the language list and check that English is both the display and preferred language.

    Let me know how it goes and I'll be here to guide you for further assistance.

    Warm regards,

    Cherrelyn

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