Can you still get a Windows 10 upgrade for free in 2025? Short answer: Maybe
Briefly

Microsoft kept its activation servers running for more than eight years after the original free upgrade offer for Windows 10 was supposed to expire, leading to widespread access.
The closure of the free upgrade loophole on September 20, 2023, has left many users unable to activate their upgraded Windows 10 installations, though some still find success.
Read at ZDNET
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