how to fix issue Windows 11 Insider Preview Feature Update (26220.7070)

Caleb 25 Reputation points
2025-11-11T21:18:51.6433333+00:00

It shows under windows update as "Fix issue" and ends as "We couldn't update the system reserved partition."

Windows Insider program | Windows Insider preview | Repair and recovery
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Norah-L 11,080 Reputation points Microsoft External Staff Moderator
2025-11-13T04:30:07.2533333+00:00

Nice day Caleb,

Thanks for joining the Q&A forum and apologies for any inconvenience you've experienced.

From what you shared, I understand you're having trouble with Windows 11 Insider Preview Feature Update (26220.7070). When Windows Update shows "Fix issue" and ends with the message: "We couldn't update the system reserved partition," it generally means Windows couldn't free enough space or make changes to that partition during the update.

To solve this, please follow this official guide in order to free up space in System Reserved Partition (SRP):

“We couldn’t update system reserved partition” error installing Windows 10

Note: The methods in the article are intended for Windows 10, but they also apply to Windows 11 Insider Preview builds since both OS versions share the same core architecture related to the EFI system reserved partition (SRP)

Caution: these steps are complicated and carry some risk. This is best done by advanced users with experience using the command line. If you make a wrong step in entering these commands, you could put your device in a no-boot situation and possibly lose data you have stored on the device.

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  1. CrazyKats 19,760 Reputation points Volunteer Moderator
    2025-11-16T22:01:39.31+00:00

    Hi Adekunle,

    The official link to the latest ISO is here:

    https://www.microsoft.com/en-us/software-download/windows11

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    1 person found this answer helpful.

  2. AI answer

    2025-11-11T21:19:03.71+00:00

    To resolve the issue of not being able to update the system reserved partition on Windows 11 Insider Preview, you can try the following steps:

    1. Free Up Space: Ensure that there is enough space in the system reserved partition. You can use disk management tools to check the partition sizes and free up space if necessary.
    2. Run Disk Cleanup: Use the Disk Cleanup tool to remove unnecessary files that may be taking up space on your system.
    3. Check for Disk Errors: Run a disk check to ensure there are no errors on your hard drive. You can do this by opening Command Prompt as an administrator and running the command: chkdsk /f.
    4. Update Windows: Make sure that your Windows is fully updated. Sometimes, pending updates can cause issues with new updates.
    5. Reset Windows Update Components: If the problem persists, you can reset the Windows Update components. This involves stopping the Windows Update service, deleting temporary files, and then restarting the service.
    6. Use Windows Recovery Options: If none of the above steps work, consider using the recovery options available in Windows. You can access these by going to Settings > System > Recovery and selecting the appropriate option.

    If the issue continues after trying these steps, you may want to check the Windows Insider Program blog for any known issues related to the specific build you are using.

    References:

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