The log files may display the following error message: This happens if the payload files were corrupt.

Windows Update Error 0xc1900403

To resolve this issue, you need to do the following in sequential order: Error 0xc1900403 has been reported while installing Windows 11/10 Feature Updates.

1] Reset Windows Update folders

You need to delete the contents of the SoftwareDistribution folder & reset the Catroot2 folder. After you perform both the operations, restart the computer, and then click on the check update button. It should start downloading the updates. The solution works when the download is stuck for a long time. Check if you are still getting the 0xc1900403 error code.

2] Run Windows Update Troubleshooters

There are two Windows Update troubleshooters. First is inbuilt into the system, while the second is Microsoft’s Online Windows Update Troubleshooter. Run both.

To run the inbuilt Windows Update Troubleshooter:

Open the Settings app from the Start MenuNavigate to Update & Security > TroubleshooterSelect Windows Update from the right side panelClick on Run Troubleshooter.

To run the online version, check out our post on Online Windows Update Troubleshooter. Once complete, check if it fixed the problem.

3] Run Windows Update again

After carrying out the above suggestions, run Windows Update again and trying to Check for updates again fixes the issue. You can do it after rebooting your computer once.

4] Use Standalone Installer or Media Creation Tool

If the above steps do not help, then use the Standalone Installer for regular Updates – or the Media Creation Tool if it is a Feature Update. Let us know if these tips helped you to resolve Windows Update Error 0xc1900403.