If you must keep Windows 7 (e.g., for legacy medical or manufacturing hardware), purchase an license from Microsoft. It is expensive for businesses, but individuals can bypass the paywall via bypasses (though legally grey). Better yet: air-gap the machine from the internet.
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: Many security vendors flag these tools as potentially unwanted programs (PUPs) or malware. Using them often requires disabling antivirus software, which exposes the system to actual threats. If you must keep Windows 7 (e
Some malicious actors use activation tools as a vector for staged ransomware. The loader runs, shows a fake "Activation successful" message, and drops a ransomware binary scheduled to execute 7–14 days later. By then, you have deleted the installer and cannot trace the source. Can't boot into windows after loader