Alex Ruben
How to Fix Windows Update Error Code 0x80070645 in Windows 10/11
Encountering Windows Update Error Code 0x80070645 can be frustrating, as it disrupts the update process and may prevent essential updates from installing correctly. This error is often tied to .NET Framework components but can also stem from issues like corrupted system files, faulty Windows Update components, or conflicts with third-party software. In this tutorial, we’ll walk you through effective steps to resolve this error, enabling smooth updates again.
Step 1: Enable .NET Framework Components
The initial step to address this error involves ensuring that the necessary .NET Framework components are enabled on your system. Here’s how to do that:
- Type Control Panel in the Windows search bar and select the relevant option.
- Click on Programs.
- Select Turn Windows features on or off.
- Look for .NET Framework 3.5 (includes .NET 2.0 and 3.0) in the list. Expand the section and check all associated checkboxes.
- Next, locate .NET Framework 4.8 Advanced Services. Expand this section as well, ensuring to check all relevant options, including ASP.NET 4.8.
- Finally, click OK to apply the changes.
Enabling these frameworks helps to ensure that any components needed for updates are available and functional, potentially resolving the update error.
Step 2: Run the Windows Troubleshooter
If enabling .NET components didn’t resolve the issue, the next step is to utilize the built-in Windows Troubleshooter specifically designed for addressing update problems.
- Type Troubleshoot in the Windows search and press Enter.
- Select Additional troubleshooters (or Other troubleshooters in some versions).
- From the list, find Windows Update.
- Click on it and select Run the troubleshooter.
- Follow any on-screen instructions and restart your computer when prompted to complete the process.
This tool systematically checks for issues affecting the update service and applies fixes automatically, streamlining the troubleshooting process.
Step 3: Repair Corrupted Files
If the error persists, you can check for and repair any corrupted system files that might be causing the problem.
- Type cmd in the Windows search bar.
- Right-click on Command Prompt and select Run as administrator.
- When prompted by the User Account Control, click Yes.
- In the Command Prompt window, paste the command
sfc /scannowand press Enter. - Wait for the scan to complete, which may take some time, and then restart your PC.
This command checks for integrity violations in system files and repairs any issues found, potentially tackling problems that are interfering with the update process.
Extra Tips & Common Issues
While the steps outlined above should help most users resolve Error Code 0x80070645, there are additional tips to consider:
- Ensure that any antivirus or VPN services are temporarily disabled during the update process, as they may interfere with installations.
- Sometimes, previously installed updates can cause conflicts; consider uninstalling recent updates if issues continue.
- Stay on the lookout for Windows updates that target .NET Framework improvements directly—keeping your system up to date is crucial for better stability.
By following these steps, you can effectively troubleshoot and fix Windows Update Error Code 0x80070645, ensuring a smoother update experience on your system.
Frequently Asked Questions
What causes Windows Update Error Code 0x80070645?
This error primarily arises due to issues with .NET Framework components, but can also be triggered by corrupted system files, conflicts with third-party applications, or installation problems with previous updates.
Can I prevent this error from occurring again?
Yes, regularly maintaining your system by applying Windows updates and ensuring that your .NET Framework components are up to date can significantly reduce the chances of encountering this error in the future. Additionally, avoiding conflicts from third-party software during updates is beneficial.
What should I do if none of the steps work?
If you exhaust the troubleshooting steps without success, consider reaching out to Microsoft Support for further assistance. They can provide more specialized solutions based on your specific situation.
