0x00000717 Error: Resource Language ID Not Found

What's Going On?

This error shows up when Windows can't load a language-specific file for a program or driver. It's not a hardware problem — it's a missing or corrupted language resource file (MUI file, usually in C:\Windows\System32\en-US\ or similar).

I see this most often after a Windows 10 or 11 feature update, or after someone installs a language pack and then removes it. The app or driver expects a language file that's no longer there.

Let's fix it. Start with the 30-second fix, then move down if needed.

Fix 1: Reinstall the App or Driver (30 seconds)

This sounds dumb, but it works more than half the time. The installer was missing the language file. Reinstalling forces Windows to grab it fresh.

1. Open Settings > Apps > Apps & features.
2. Find the app that's throwing the error. Uninstall it.
3. Reboot your machine.
4. Download the latest version from the official site. Install it.

If it's a driver (like for a printer or graphics card), go to Device Manager, right-click the device, choose Uninstall device, check Delete the driver software for this device, reboot, then let Windows auto-detect and reinstall.

Fix 2: Run SFC and DISM (5 minutes)

Corrupted system files cause this. Don't skip this step — it's quick.

1. Open Command Prompt as Administrator. Click Start, type cmd, right-click Command Prompt, choose Run as administrator.
2. Run this command:
   

   sfc /scannow

   
   Wait for it to finish. If it finds corrupted files, let it repair.
3. Then run DISM to fix the component store:
   

   DISM /Online /Cleanup-Image /RestoreHealth

   
   This takes 5-10 minutes. Let it finish.
4. Reboot.

If SFC says it can't repair some files, try running DISM first, then SFC again. That order matters.

Fix 3: Check Language Pack Integrity (10 minutes)

Sometimes the language pack itself is broken. This happens if you installed a third-party language pack or manually messed with language settings.

1. Open Settings > Time & Language > Language.
2. Under Preferred languages, click your default language (like English (United States)).
3. Click Options. Check if Language pack is listed. If not, click Download.
4. If it says Downloaded, remove the language pack by clicking Remove, reboot, then re-add it.

For Windows 11, the path is similar: Settings > Time & language > Language & region.

Fix 4: Manual Registry Edit (15+ minutes, Advanced)

This is for when the error keeps coming back for a specific system driver or service. Messing with the registry can break things — back it up first.

1. Press Win + R, type regedit, hit Enter.
2. Go to:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Language
3. Look for a value named Default (usually 0409 for en-US) or InstallLanguage. If it's missing or wrong, set it to 0409 (or your correct LCID).
4. Also check:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex\Language
   for a similar setting.
5. Reboot.

If you don't know your LCID, Google "Windows language LCID list". For example, 0409 = English (United States), 0411 = Japanese.

Fix 5: Repair Install or Reset (Last Resort)

If nothing above works, the system image is borked. Do a repair install using Windows Media Creation Tool. It keeps your files and apps but replaces all system files. Or do a full reset (Settings > Update & Security > Recovery > Reset this PC) — keep your files or remove them, your call.

I've only needed this once in 10 years. Usually Fix 1 or Fix 2 does it.

Quick Checklist

Start with the first one. You'll probably be done by the time you'd be reading this.