How to Fix Windows.Cortana.OneCore.dll Missing Error (Solved)
What is Windows.Cortana.OneCore.dll?
Windows.Cortana.OneCore.dll is a Dynamic Link Library (DLL) file that is crucial for the proper functioning of Cortana Microsoft’s virtual assistant. This file helps in the smooth operation of Cortana and other related applications.
Why is Windows.Cortana.OneCore.dll missing?
The issue can arise due to several reasons such as accidental deletion malware infection that corrupts the file or system updates that unintentionally remove the DLL. In some cases the file might not be registered correctly in the Windows Registry.
Step-by-Step Fixes:
Method 1: Reinstall Visual C++ Redistributable
The missing DLL could be due to issues with Visual C++ Redistributable. To resolve this you can reinstall the latest version of Visual C++ Redistributable. Follow these steps:
- Download the latest version of Visual C++ Redistributable from Microsoft’s official website.
- Run the downloaded installer and follow the on-screen instructions to complete the installation process.
Method 2: Run SFC /scannow command
Running the System File Checker (SFC) scan can help fix corrupted system files. Here’s how:
- Press Windows key + X and select Command Prompt (Admin) or PowerShell (Admin).
- Type the command `sfc /scannow` and press Enter.
- Wait for the scan to complete. Once done restart your computer and check if the issue persists.
Method 3: Update System Drivers
Outdated drivers can also cause such issues. Updating them may help resolve the problem. You can use Device Manager for this:
- Press Windows key + X and select Device Manager.
- Expand the categories right-click on a device and select Update Driver.
- Choose ‘Search automatically for updated driver software’ and follow the prompts.
Conclusion
The Windows.Cortana.OneCore.dll missing error can be troublesome but by following the methods outlined above you should be able to resolve the issue and restore Cortana’s functionality.