Windows 10: i cannot upgrade to win 11 pro and cannot deactivate s mode

hii hope this finds you well.i just upgraded to win 11 and cannot upgrade to win 11 pro. I am also unable to deactivate the S mode.

:)

 

Windows 11 Home to Pro upgrade failed with 0x80070490 and then 0xC004C003

Thank you John, entering this generic product code fixed my system too.

I was upgrading a new Win 11 Home PC to Win 11 Pro from the Microsoft store.

During the install I also got the 0x80070490 error. After a reboot I had Windows 11 Enterprise installed and said it was Activated??? The next day Microsoft must have detected their error and deactivated my system. Still showed Win 11 Enterprise.

Tried the suggested generic product code and a few reboots later I still see Win 11 Pro is activated.

Seems too good to be true...

 

Windows 11 Pro Upgrade from Windows 10 Pro Edition

No but after it installed the malfunctioning Windows 11 upgrade it was listed as Windows 11 Pro. Microsoft Windows support advised I reinstall Windows 10 Pro and said that Windows 11 is really only meant for new PC's that come with it preinstalled. MSI website doesn't list my 2020 GT76 Titan dt-039 notebook on their Windows 11 upgrade eligibility list so I guess that's why the Windows 11 Pro upgrade failed. I suggest being careful with trying the Windows 11 upgrade despite it stating my notebook was capable of running Windows 11 it was wrong. Luckily I have the original Windows 10 Pro USB Flash drive because the Windows 11 Pro upgrade was so incomplete I had no way of reverting notebook back to Windows 10 without reinstalling from a USB Flash.

 

Upgrade Windows 11 Pro

I am sorry , I am not so sure about your issues, but for Microsoft Surface device , it is normally preinstall with Windows 10/11 S mode , you need to first switch the S mode to Home version , then you can use the windows 10/11 Pro key to upgrade from windows 10/11 Pro version, here is the steps

Switch from windows 11 S to Home :

1. open Settings > System > Activation.
   
2. In the Switch to Windows 11 Pro section, select Go to the Store. (If you also see an "Upgrade your edition of Windows" section, be careful not to click the "Go to the Store" link that appears there.)
   
3. On the Switch out of S mode (or similar) page that appears in the Microsoft Store, select the Get button. After you see a confirmation message on the page, you'll be able to install apps from outside of the Microsoft Store.
   

Upgrade from Windows 11 Home to Pro:

1：Select Start > Settings > System > Activation.

2：Under Upgrade your edition of Windows, select Open Store

3：Select " I have a Windows 10/11 Pro Product Key", then Input the product Key

4: If you have any error warning , please reboot your PC and try it again

Switch windows 11 S to windows 11 Home is free of charge , but upgrade from windows 11 home to Pro need a product key if you have !

Upgrade directly from Microsoft store is for $99.99USD, but you can get a windows 11 Pro key from the Microsoft partner online store keyingo, it is cheaper but genuine too