Windows 10: I have a 365 account. I need to upgrade to Windows 11 Pro

I have a 365 account. I need to upgrade to Windows 11 Pro for Remote Desktop. I have 11 Home now. It's asking for a product key - which I do not have. Even in the Microsoft Store I an unable to upgrade. Please help - thank you!!

:)

 

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.

 

Windows 11 Pro Upgrade

Attempting to upgrade from Windows 11 Home to Windows 11 Pro requests a Microsoft account. When a valid new or existing user account is entered the validation error "That Microsoft account doesn't exist. enter a different account or get a new one." is presented. There is no way to proceed with the upgrade.

The organization is licensed with Microsoft 365 Business Standard since 2019. The domain is hosted by Microsoft and has a 'xxxxxxxx.us' domain name.

How do I get past this to upgrade to Windows 11 Pro?

 

Upgrading to windows 11

I have a few questions about windows 11...

1. How many GB it is? when my pc suggested the upgrade yesterday, it said it's about 4GB just want to be sure.
   
2. I'm using a windows 10 pro so if I upgrade, will it upgrade to a windows 11 pro?