Fix error code: 0xC004F061 Activation Error for Windows 7 When Windows 7 is activated, many people face an activation error code 0xC004F061. This error code indicates that Windows 7 product key is used for upgrading on such a machine where previous version was not installed. The upgrading activation code or product key is only used when you want to update the Windows from … [Read more...] about Fix error code: 0xC004F061 Activation Error for Windows 7