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目錄
Steps:
Example:
3. Repair Microsoft Office (If Error is Office-Related)
Try this:
4. Check 32-bit vs 64-bit Compatibility
Fix:
5. Reinstall the Problematic Software
6. Scan for System File Corruption
Summary Checklist:
首頁 電腦教學(xué) 故障排查 如何修復(fù)Win 10上的'未註冊(cè)”錯(cuò)誤

如何修復(fù)Win 10上的'未註冊(cè)”錯(cuò)誤

Aug 03, 2025 am 03:11 AM

“Class not registered”錯(cuò)誤通常由COM對(duì)象未正確註冊(cè)引起,解決方法包括:1. 以管理員身份運(yùn)行程序;2. 使用regsvr32重新註冊(cè)相關(guān)DLL或OCX文件,如scrrun.dll、msxml3.dll等;3. 若為Office相關(guān)問題,通過控制面板選擇在線修復(fù)Microsoft Office;4. 確保32位或64位DLL使用對(duì)應(yīng)版本的regsvr32註冊(cè),32位DLL應(yīng)使用C:\Windows\SysWOW64\regsvr32.exe;5. 卸載並重新安裝出問題的軟件以確保組件正確註冊(cè);6. 在管理員命令提示符中運(yùn)行sfc /scannow和DISM /Online /Cleanup-Image /RestoreHealth修復(fù)系統(tǒng)文件;7. 通過事件查看器查看應(yīng)用程序日誌,定位具體缺失的類ID(CLSID);8. 若錯(cuò)誤出現(xiàn)在瀏覽器中,啟用ActiveX控件支持,但僅限受信任站點(diǎn)。按此順序排查通??山鉀Q該問題。

how to fix \

The "Class not registered" error in Windows 10 usually appears when an application tries to access a COM (Component Object Model) object or ActiveX control that isn't properly registered in the system. This commonly happens with older software, Office applications, web browsers using ActiveX, or tools relying on specific DLLs.

how to fix

Here's how to fix it:


1. Run the App as Administrator

Sometimes, the issue is due to insufficient permissions.

how to fix
  • Right-click the application or shortcut.
  • Select "Run as administrator" .
  • If it works, set it permanently:
    • Right-click → PropertiesCompatibility tab → Check "Run this program as an administrator" .

2. Re-register the Problematic DLL or OCX File

The missing or corrupted class might be tied to a specific file. You'll need to re-register it using regsvr32 .

Steps:

  1. Press Win X → Choose Command Prompt (Admin) or Windows Terminal (Admin) .
  2. Type the following command (replace filename.dll with the actual file if known):
 regsvr32 filename.dll

If you don't know the file, common culprits include:

how to fix
  • scrrun.dll (Scripting Runtime)
  • msxml3.dll , msxml6.dll (XML support)
  • jscript.dll
  • vbscript.dll
  • ole32.dll
  • actxprxy.dll

Example:

 regsvr32 scrrun.dll

? You should see a "DllRegisterServer in [file] succeeded" message.

?? If you get an error, the file might be missing or corrupted.


This error is frequent in Outlook, Excel, or Word when add-ins fail.

Try this:

  • Go to Control Panel → Programs → Programs and Features .
  • Select Microsoft Office → Click Change → Choose Repair .
  • Use Online Repair (not Quick Repair) for best results.

After repair, restart your PC.


4. Check 32-bit vs 64-bit Compatibility

Windows has separate registries for 32-bit and 64-bit COM classes.

  • If you're using a 32-bit app on 64-bit Windows , it looks in Wow6432Node .
  • A mismatch can cause "Class not registered".

Fix:

  • Make sure you're registering the correct version of the DLL.
  • Use the 32-bit version of regsvr32 for 32-bit DLLs:
    • C:\Windows\SysWOW64\regsvr32.exe (for 32-bit)
    • C:\Windows\System32\regsvr32.exe (for 64-bit)

So, to register a 32-bit DLL:

 C:\Windows\SysWOW64\regsvr32.exe filename.dll

5. Reinstall the Problematic Software

If the app causing the error isn't part of Windows or Office:

  • Uninstall it completely.
  • Download the latest version from the official site.
  • Reinstall it (preferably as admin).

This ensures all COM components are registered correctly during setup.


6. Scan for System File Corruption

Corrupted system files can break COM registration.

Run these commands in an elevated Command Prompt :

 sfc /scannow

After it finishes, run:

 DISM /Online /Cleanup-Image /RestoreHealth

Restart your PC after both complete.


7. Check Event Viewer for Clues

To identify the exact missing class:

  • Press Win XEvent Viewer .
  • Go to Windows Logs → Application .
  • Look for Error entries around the time the crash happened.
  • The details may show something like:

    "Class not registered: {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}"

You can search online for that CLSID to identify the missing component.


8. Enable ActiveX in Browser (If Web-Based)

If the error occurs in Internet Explorer or a legacy web app:

  • Open Internet OptionsSecurity tab.
  • Select Internet zone → Click Custom Level .
  • Scroll down to ActiveX controls and plug-ins .
  • Enable:
    • Run ActiveX controls and plug-ins
    • Script ActiveX controls marked safe

?? Only do this on trusted sites.


Summary Checklist:

  • ? Run as administrator
  • ? Re-register relevant DLLs using regsvr32
  • ? Repair or reinstall the affected software (especially Office)
  • ? Use correct 32/64-bit regsvr32 version
  • ? Run sfc /scannow and DISM
  • ? Check Event Viewer for the missing class ID
  • ? Reinstall the app if nothing works

Most "Class not registered" errors are fixable by re-registering the right component or repairing the software. The key is identifying which class or app is failing — once you know that, the solution is usually straightforward.

以上是如何修復(fù)Win 10上的'未註冊(cè)”錯(cuò)誤的詳細(xì)內(nèi)容。更多資訊請(qǐng)關(guān)注PHP中文網(wǎng)其他相關(guān)文章!

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