Error Code 0x80070490: Causes Fixes and Prevention


Error code 0x80070490 is a Windows error that frequently appears during system updates or application installations. This error can be frustrating, leading to disruptions in your workflow and potential data loss. In this comprehensive guide, we will delve into the root causes of error code 0x80070490, explore various fixes, and provide tips for preventing this error in the future.

What is Error Code 0x80070490?

Error code 0x80070490 is a Windows-specific error indicating a failure in the Component-Based Servicing (CBS) manifest or the System Component Store. This error typically occurs during Windows Updates or while installing certain applications, preventing the successful completion of these processes.

Common Causes of Error Code 0x80070490

Understanding the causes of error code 0x80070490 is crucial for troubleshooting. Common causes include:

  • Corrupted system files.
  • Issues with Windows Update components.
  • Malware or virus infections.
  • Registry errors.
  • Incomplete or failed updates.

Identifying Error Code 0x80070490

When error code 0x80070490 occurs, you will likely see a message such as “Windows Update encountered an unknown error” or “Installation failed.” Recognizing this specific error code helps in applying targeted fixes.

Running the Windows Update Troubleshooter

The Windows Update Troubleshooter is a built-in tool that can help resolve error code 0x80070490. To use it:

  1. Go to Settings > Update & Security > Troubleshoot.
  2. Select Windows Update and click “Run the troubleshooter.”
  3. Follow the on-screen instructions to identify and fix issues.

Performing a System File Check (SFC) Scan

A System File Check (SFC) scan can detect and repair corrupted system files that might be causing error code 0x80070490. To perform an SFC scan:

  1. Open Command Prompt as an administrator.
  2. Type sfc /scannow and press Enter.
  3. Wait for the scan to complete and follow any prompts to fix detected issues.

Using the DISM Tool

Deployment Imaging Service and Management Tool (DISM) can repair a corrupted Windows image, which might resolve error code 0x80070490. To use DISM:

  1. Open Command Prompt as an administrator.
  2. Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
  3. Allow the process to complete, which may take some time.

Resetting Windows Update Components

Resetting Windows Update components can clear up issues causing error code 0x80070490. Follow these steps:

  1. Open Command Prompt as an administrator.
  2. Stop the Windows Update services by typing:

    net stop wuauserv
    net stop cryptSvc
    net stop bits
    net stop msiserver
  3. Rename the SoftwareDistribution and Catroot2 folders:

    ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
    ren C:\Windows\System32\catroot2 Catroot2.old
  4. Restart the Windows Update services:

    net start wuauserv
    net start cryptSvc
    net start bits
    net start msiserver

Checking for Malware and Viruses

Malware or viruses can cause error code 0x80070490. Use a reliable antivirus program to scan and remove any threats. Regular scans can prevent such issues from occurring.

Registry Fixes for Error Code 0x80070490

Incorrect or corrupt registry entries can lead to error code 0x80070490. Use the Windows Registry Editor with caution:

  1. Open the Registry Editor by typing regedit in the Run dialog.
  2. Navigate to:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing
  3. Look for any suspicious or incorrect entries and remove them, or back up and restore the registry.

Reinstalling Windows

As a last resort, reinstalling Windows can resolve persistent issues causing error code 0x80070490. Ensure you back up your data before proceeding. You can perform a clean installation or use the “Reset this PC” feature in Settings.


Error code 0x80070490 can be a significant roadblock in maintaining your Windows system. However, by understanding its causes and applying the appropriate fixes, you can resolve this error and ensure smooth system performance. Regular maintenance, such as running antivirus scans and keeping your system updated, can prevent error code 0x80070490 from reoccurring.


1. What does error code 0x80070490 mean?

Error code 0x80070490 indicates a failure in the Component-Based Servicing (CBS) manifest or the System Component Store, commonly occurring during Windows Updates or application installations.

2. How can I fix error code 0x80070490?

You can fix error code 0x80070490 by running the Windows Update Troubleshooter, performing SFC and DISM scans, resetting Windows Update components, checking for malware, and addressing registry issues.

3. Can malware cause error code 0x80070490?

Yes, malware or viruses can corrupt system files and components, leading to error code 0x80070490. Regular antivirus scans are essential for prevention.

4. Is reinstalling Windows necessary to fix error code 0x80070490?

Reinstalling Windows should be considered a last resort if other troubleshooting methods fail to resolve error code 0x80070490. Always back up your data before reinstalling.

5. How can I prevent error code 0x80070490 in the future?

Prevent error code 0x80070490 by keeping your system updated, regularly scanning for malware, running SFC and DISM scans periodically, and maintaining a clean registry

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