how to fix " 0x80070070 -0x2000A " error?

Hi,

Error 0x80070070 denotes insufficient disk space on the OS partition. Please free up at least 30 GB of disk space on the C drive and try again.

Before running the Windows 11 setup, follow these steps to ensure a smooth upgrade experience.

Enable Memory Integrity. To do so, go to Windows Security > Device security > Core isolation details > Memory integrity. If it shows any incompatible drivers, post the screenshot here.

To avoid third-party software interference, perform a clean boot on the system before running the setup. A clean boot is the process of starting Windows without loading any third-party applications or services. For more information, please refer to the Microsoft article.

How to perform a clean boot in Windows - Microsoft Support
(Step 3 in the above link is very important. You need to first enable "Hide all Microsoft Services" before clicking "Disable all".)

Uninstall 3rd party antivirus if installed; you can reinstall it after the upgrade. After uninstalling it, restart Windows.

Hi

I have the same problem. MS Remote Support tried to upgrade my 10 to 11 with the ISO file, but it failed. My laptop meets the specs for an upgrade to 11.
We couldn’t install Windows 11 We’ve set your PC back to the way it was right before you started installing Windows 11

0x80070070 – 0x2000A

**The installation failed in the Safe_OS Phase with an error during PREPARE FIRST BOOT operation
**
Judging from this thread, the 0x80070070 – 0x2000A is a lack of sufficient storage issue. I had less than 10 GB free on my C Drive when MS Remote Support tried the ISO upgrade.
A second rep (after the failure) wanted to wipe both my drives, repartition, and do a clean install of 11 - I declined that option and am still hoping for a simpler solution.

I have since managed to get my free space on C up to 18 GB, but this thread suggests that it is still not enough. I suppose that I can delete apps until I get to 30 GB (and then reinstall them - a pain).

Is it worth trying to upgrade again with 18 GB of free space and which option to use?

The upgrade options seem to be...

Settings > Windows Update

Windows 11 Installation Assistant

Create Windows 11 Installation Media

Windows 11 Disk Image (ISO) - I already deleted the ISO file MS Support downloaded
Of course, I have no guarantee that I won't run into a different error while trying to upgrade.

I have enabled Memory Integrity, but have not done any of the other steps mentioned above.

I'd like to keep this laptop for another 1 - 2 years.
I'm also happy to keep Windows 10 with the supplemental protection ($30?) for 1 more year.

Thank you for any advice
Andrew

Hi Enes,

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1)Please run the V2 log collector and post a share link into this thread using drop box, or google drive

BSOD - Posting Instructions - Windows 10 Forums

BSOD - Posting Instructions | Windows 11 Forum (elevenforum.com)

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https://www.tenforums.com/tutorials/3813-language-add-remove-change-windows-10-a.html

https://www.tenforums.com/tutorials/136792-change-display-language-windows-10-a.html#option1

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2)Run: upgrade_failure_info > post a share link

https://www.tenforums.com/attachments/bsod-crashes-debugging/353454d1638278360-batch-files-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums

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3)Run Tuneup plus > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Page 2 - Windows 10 Forums

Batch files for use in BSOD debugging - Windows 10 Forums

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4)Open administrative command prompt and copy and paste:

fltmc

schtasks.exe /Run /TN "\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser"

reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators" /s

Post share links.

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For share links please use drop box or google drive.

Make sure that links are available without sign in.

https://support.google.com/drive/answer/2424384?hl=en&co=GENIE.Platform%3DDesktop

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Docs

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Please remember to vote and mark the replies as answers if they help.

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The most successful method to upgrade to Windows 11 is to use the Windows 11 ISO.

Please follow the steps, this is then not like re-installing Windows, it is just like an update and your personal files, settings and installed software will not be affected.

You will need at least 40GB of free space on your C drive.

Click this link:

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

to download the Windows 11 ISO

When the ISO file completes downloading

Disconnect from the Internet

Disconnect all external devices with the exception of a mouse or keyboard.

Temporarily disable any 3rd party Anti-virus you may have installed

Then, in Windows File Explorer, double click the ISO and then run Setup.exe and select the Install option.

Very Important - ensure you select the option to keep your files and apps.