Microsoft blocks Windows 7/8 users from upgrading to Windows 11 for free

Microsoft starts downloading Windows 10 automatically through Windows Update, Windows 10

Free Activation from Windows 7/8 key or upgrade to Windows 10/11 Ends

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Windows 10 Vs Windows 8 Vs Windows 7: What's The Difference?

Microsoft ends free upgrade from Windows 7/8 to 11 - Gizmochina

Microsoft Says the Days of Free Windows 7 to 10 or 11 Updates Are Over

You'll no longer be able to activate Windows 11 with a Windows 7 product key

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Windows 10 Help Forums