How to Fix QuietHours.dll Missing Error – Step by Step

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How to Fix QuietHours.dll Missing Error (Solved)

How to Fix QuietHours.dll Missing Error (Solved)

What is QuietHours.dll?

QuietHours.dll is a Dynamic Link Library (DLL) file in the Windows operating system specifically associated with Microsoft’s Time Sync Service. This file helps manage power settings and notifications during quiet hours or focus assist modes.

Why is QuietHours.dll missing?

The QuietHours.dll may go missing due to various reasons including malware infections that remove system files accidental deletion during disk cleaning processes or system updates that fail to reinstall the file correctly.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

  1. Visit the official Microsoft Download Center at https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads.
  2. Download the Visual C++ Redistributable for your specific version of Windows (x64 or x86).
  3. Run the downloaded installer and follow the instructions to complete the installation process.

Method 2: Run SFC /scannow command

This method uses the System File Checker tool to scan for and repair corrupted system files including QuietHours.dll.

  1. Press Windows key + X and select “Command Prompt (Admin)” or “Windows PowerShell (Admin)”.
  2. Type the following command and press Enter:





    3. `sfc /scannow`

  3. Wait for the scan to complete. Reboot your computer if prompted.

Method 3: Update System Drivers

Updating system drivers can help ensure that all necessary files are present and functioning correctly.

  1. Press Windows key + X and select “Device Manager”.
  2. Navigate to the device category with the problematic driver (e.g. Display adapters).
  3. Right-click on the device and select “Update driver”.
  4. Select “Search automatically for updated driver software” and follow the prompts.

Conclusion

In this guide we’ve discussed the QuietHours.dll file common causes of its disappearance and provided step-by-step solutions to resolve the issue. By following these methods you should be able to fix the missing QuietHours.dll error on your Windows computer.

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