Windows 10: Windows 11 Upgrade h

Previously I was been using Windows 10 Pro for almost an year and today I upgraded to Windows 11, but when i downgraded back to win 10 my activation key doesn't work.

:)

 

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?
   

 

Upgrade to Windows 11

I want to upgrade my OS from Windows 10 to Windows 11. I have run the compatibility software and got the message that says my Windows 10 software is not compatible with upgrading to Windows 11. I'm looking for a point & click application that will make my Windows 10 OS upgradable to Windows 11 or a file that will provide step-by-step instructions on how to accomplish the upgrade to Windows 11. I expect a list of files/applications that will not run in Windows 11 because my PC is not capable of running the new applications w/o hardware upgrades.

 

Difficulty upgrading to windows 11

Okay Thanks! but I have a few more questions...

1. Do you know 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?