In this case, to perform the KMS activation, enter the path into Internet Explorer: When the 30 day grace-period has expired, Windows is running in “Reduced Functionality Mode“, only the Internet Explorer can be called. This error can usually be resolved by a BIOS update. The KMS activation expect here a so-called “Windows marker” and fails if it is corrupted or not found. Such BIOS version contains an invalid ACPI_SLIC table. on right mouse click.Įrror 0xC004F074 (“The Key Management Service (KMS) is unavailable”): In most cases it refers to incorrectly set time or the time zone.Įrror 0xC004F035 and 0xC004F059: Especially for computers that were originally acquired with an OEM operating system, in this case the KMS activation is prevented by computer's BIOS.
The option Run as administrator is available e.g. For manual activation, you must run the Command-Line Interface (cmd.exe) as administrator.
