Windows 10: Help! Hacker gave me stolen Windows keys

Hello, This is really strange but a hacker hacked my Microsoft account and I changed my password and locked him out. Soon afterwards upgraded a Windows 7 laptop to 11. It said it was activated with a retail key. I never purchased a key in my life! I installed a few more copies of Windows 11 Home and 1 version of Pro. They all activated with retail keys linked to my account. I decided that when the hacker connected his computer to my account it linked all his stolen keys to my account and now they're in there for me to use. Is that where they could of came from? If so what should I do with

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My Identity has been stolen, please help

As I stated, my identity has been stolen and I am going through the processes of securing it. I fear that the hacker my have remote access to my pc. I downloaded a virus, reinstalled windows only to find out that he got my google info (Passwords and all) I am not a computer genius but I'm not bad for an old guy either, he seems to be one step ahead of me so Idk if I'm being paranoid or what. For example, I created new emails with new passwords, but I never receive a response from Microsoft about my stolen account, a few apps were installed in my Microsoft store that seemed unusual (xbox console companion was one) and there seems to be a lot of activity on my firewall (something I know nothing about) Any help would be appreciated

 

My Identity has been stolen, please help

"As I stated, my identity has been stolen and I am going through the processes of securing it."
Definitely follow through with the best advice and actions on all of that for all of your personal business etc.

On your computer, you might want to have a local computer shop set up your computer.
Although you are doing what you can do, that hacker most likely can keep track of what you are doing.

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx