Hi Jean,
Have you tried doing a Repair Install from here:
Erreur d’installation - 0x80070306
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(89.60000000000001, 93%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJJ%3C/text%3E%3C/svg%3E)
Jean Jacques Richard
45
Reputation points
Erreur d’installation - 0x80070306 sur la derniere mise a jour windows update, a fonctionné sur un autre ordinateur et pas sur l autre Merci
Windows Insider program | Windows Insider preview | Install, activate, and Windows update
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 34%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPC%3C/text%3E%3C/svg%3E)
Patrick COUTANT 0 Reputation points2026-05-27T12:02:57.6933333+00:00 j'ai eu 2 problèmes identiques sur les 2 dernières mises à jour : que faire pour que cela ne se reproduise pas sur la prochaine
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Answer accepted by question author
CrazyKats
15,785
Reputation points
Volunteer Moderator
Answer accepted by question author
AI answer
The error code 0x80070306 is not specifically detailed in the provided context. However, it is generally associated with issues during Windows Update installations. To troubleshoot this error, you can try the following steps:
- Run Windows Update Troubleshooter: This built-in tool can help identify and fix common problems with Windows Update.
- Check for Disk Errors: Run
chkdskto check for and repair any disk errors that might be causing the installation issue. - Clear Windows Update Cache: Stop the Windows Update service, delete the contents of the
C:\Windows\SoftwareDistribution\Downloadfolder, and restart the service. - Perform a Clean Boot: This can help identify if third-party applications are interfering with the update process.
- Check System Files: Run
sfc /scannowin an elevated command prompt to check for and repair corrupted system files.
If the problem persists, consider reviewing the CBS.log file for more detailed error messages related to the update process.
References:
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Jean Jacques Richard 45 Reputation points
2025-11-27T14:32:23.4566667+00:00 Nouveau message d'erreur: Erreur d’installation - 0x800f0983