Hi there @abi2
I understand that you are looking for information on the Windows 10 upgrade. I am happy to assist with this.
Assuming you have a legitimate installation of Windows 7, 8, or 8.1, and an internet connection, one of the system updates from Microsoft should have given you the ability to reserve your upgrade from Microsoft.
Please see the following: https://www.microsoft.com/en-us/windows/windows-10-upgrade
I hope this helps.
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