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Windows 11 Pro OEM product keys not activating
Hello, I recently started having problems with activating new Windows 11 Pro OEM sticker product keys on new equipment. The issues started from yesterday afternoon, a few hours before that anothe...
The Microsoft agent confirmed that your keys are valid but for Windows 10 Pro, not Windows 11 Pro. OEM keys are often version-specific, and using a Windows 10 OEM key on Windows 11 might cause activation issues.