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Window 10 proline laptop notebook

Caitlyn Cassidy Perrett 0 Reputation points
2026-05-14T08:21:19.21+00:00

window key not working explorer.exe class not registered

Windows for home | Windows 10 | Windows update
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  1. DaveM121 891.1K Reputation points Independent Advisor
    2026-05-14T08:57:46.4166667+00:00

    Start your laptop, just as Windows attempts to load (spinning dots), press and hold Power Button for 5 - 10 seconds to perform a Hard Shut Down

    Do this twice

    On the third start Windows will boot into the Recovery Environment and from there you can access System Repair, Safe Mode, Command Prompt... etc.

    Please try each option one at a time, then check if that resolves the problem.

    1

    If there is an option to uninstall the latest update, that may be the best option.

    2

    Go to Troubleshoot - Advanced Option - System Restore

    Check to see if you have a restore point you can go back to

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  2. AI answer

    2026-05-14T08:21:37.6766667+00:00

    Use the following steps to address the “explorer.exe – Class not registered” issue and related File Explorer problems on Windows 10:

    1. Run Automatic Repair (Startup Repair) This targets system and registry corruption that can cause Explorer and shell issues.
      1. Select Start > Settings > Update & Security.
      2. Select Recovery.
      3. Under Advanced startup, select Restart now.
      4. On the Choose an option screen, select Troubleshoot > Advanced options > Startup Repair.
      5. Choose the user account and enter its password.
      The repair will run and the PC may restart during the process. After it completes, sign in and test:
      • Press the Windows key.
      • Open File Explorer and check if the “Class not registered” error is gone.
    2. Install available Windows updates Some Explorer.exe crash and shell issues in Windows 10 Technical Preview/early builds were fixed by updates delivered through Windows Update.
      1. Connect to the internet.
      2. Go to Settings > Update & Security > Windows Update.
      3. Select Check for updates and install all important/critical updates.
      4. Restart the device and test the Windows key and File Explorer again.

    If File Explorer still does not work reliably after these steps, send feedback through Feedback Hub so Microsoft can investigate potential issues.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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