Windows 10: Fix Windows Upgrade error 0x800700B7- 0x2000A

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If you have encountered Windows Upgrade error 0x800700B7- 0x2000A when you try to upgrade to Windows 11 or to the latest version/build of Windows 10; there’s no cause for alarm as you’re in the right place! This post is intended to help you with the most suitable solutions you can try to successfully resolve this issue. […]

This article Fix Windows Upgrade error 0x800700B7- 0x2000A first appeared on TheWindowsClub.com.

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How to fix 0x800700b7 error

Hi!

My OS is Windows 10. Every time my PC updates through Windows 10 Update Assistant, it can't proceed and is stuck with the 0x800700b7 error. How can I fix this? This is very annoying, since there is no option not to proceed with the update.

Thanks,

Clint

 

Error upgrading Windows 7 to Windows 10 - error 0x800700A1 - 0x2000A

Hi,

Thank you for contacting Microsoft Community. I understand that you have an issue with upgrading to Windows 10 and get error 0x800700A1 - 0x2000A, The installation failed in the SAFE_OS_PHASE with an error during PREPARE_FIRST_BOOT operation. I will surely
help you with this issue.

I suggest you to try the steps under the section SAFE_OS phase during PREPARE_FIRST_BOOT from the following wiki article created by Andre Da Costa. Check if it helps.

http://answers.microsoft.com/en-us/...p-errors/324d5a5f-d658-456c-bb82-b1201f735683

Refer the article for additional information.

http://windows.microsoft.com/en-us/windows-10/upgrade-install-errors-windows-10

Hope this information helps. Reply to the post with an updated status of the issue so that we can assist you further.

 

Windows 10 Upgrade Error


Google is your friend - just entered the error message and up popped various solutions -

Google

Happy reading & good luck!