![]() ![]() The supported versions of Windows 7 that can be activated by KMS are:įor any machines that were affected, they would have seen warnings that state "Windows is not genuine", "This copy of Windows is not genuine", or 0xC004F200 errors. This code change affected Windows 7 machines that had the KB971033 update installed and were activated by KMS. Windows 7 devices that have KB 971033 installed but did not experience this issue between the time of the change (10:00:00 UTC, January 8, 2019) and the time of the reversion of that change (4:30:00 UTC, January 9, 2019) should not experience the issue that is described in this article. Note This timing coincides with the release of the “1B” January 2019 updates (KB 4480960 and KB 4480970) that were released on Tuesday, January 8, 2019. The change was introduced at 10:00:00 UTC on January 8, 2019, and was reverted at 4:30:00 UTC on January 9, 2019. A recent update to the Microsoft Activation and Validation unintentionally caused a "not genuine" error on volume-licensed Windows 7 clients that had KB 971033 installed.
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