GetLicenseKey returned garbled string

General
#1

Currently i’m trying to reproduce the case, but on a machine, after the following step, GetLicenseKey returned this string instead of a proper license key:
“0C28BBB02CC08F11A6324EA7B88BB03B5D1C9EFCB2A3E73C5B0EC956BAB97D71D983490374C7D6AB61585CD827704A031D3421F7F579D0780517340F7950B199”

The steps we did originally was:

  • Activate a license key with offline activation
  • Wait a couple of days
  • Windows Update happened and rebooted by Windows Update
  • Noticed that GetLicenseKey does not return proper string anymore

If there’s any clue to narrow down this case, it would be very helpful.

#2

What is the status returned by IsLicenseGenuine() function. The value returned by any function has no meaning unless license is activated.