Hi,
Thank you for writing to Microsoft Community Forums.
I understand that you receive an error code 0x80004005, after upgrading from Windows 10 1803 to 1909. I’ll
help you with this issue.
However, please let us know:
- Did Windows 10 come pre-installed on the computer?
- Were you using a Microsoft account to sign in to the computer earlier?
- Was there any hardware changes made on the computer prior to this issue?
I would suggest you to try running the activation troubleshooter and see if that helps. Refer the steps mentioned
in the article Using the Activation troubleshooter.
If you have a product key, try using it to activate Windows. Refer the section
Activate using a product key from the article Activate Windows 10.
For more information, see
Get
help with Windows activation errors.
If you still face issues, do not worry, you can get in touch with our Activation team and they will help you
with the issue. Please refer the article Global
Customer Service phone numbers to get the Customer support number as per your country.
Regards,
Nikhar Khare
Microsoft Community - Moderator