Windows 10: My Windows 7 Ultimate computer was genuine before, until I downloaded and installed...

I asked for help a few days ago, I wanted to upgrade to Windows 10 with my Windows 7 computer, I know that's bit weird, but I thought it was possible. I'm told that by downloading the MediaCreationTool.exe from the official Microsoft Website, my computer would directly become Windows 10. I'm aware that it isn't free, but I just tried, I'm going to pay anyways.After installation, my computer was still the same, it's Windows 7 but is no longer genuine. Okay, I want to reverse what I just did. This is basically no good, I am prone to viruses and hijacks.How do you undo this? or cancel?My computer

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Install Windows 10 Pro, on a computer with Windows 7 Ultimate(non-genuine)?

What would be the steps to install a Windows 10 Pro copy buyed from Microsoft Store, on a computer that has Windows 7 Ultimate(non-genuine), without being left any traces from the non-genuine Windows 7?

What would be the easiest way for a newbie on this matter?

Thanks,

Diego

 

Windows 7 Ultimate 64bit crashing on installation

So i have Windows 7 Professional 32bit installed and I wanted windows 7 Ultimate 64bit. It boots from the disk just fine, its just after you press the first button (i thing its callled install now or something) after a few seconds, it bluescreens and i have to restart. System specs are listed and i know my processoror is 64bit, any ideas?

 

Will installing Windows 10 ISO on Windows 7 (genuine) make Windows 10 genuine?

I'm having trouble with Windows servers or my Windows update. Every time download gets stuck at magic 84%. Now I am thinking of installing Windows 10 through an ISO on a Windows 7 laptop. Will installing Windows 10 with an ISO over Windows 7 (genuine) make Windows 10 genuine?
Can anyone explain me the exact steps to get that iso from installing the iso keeping the windows genuine.