@Ryan Matthews
Hi,
You can only get this update after purchasing the ESU.
If you are installing this update on a device that is running an edition that is not supported for ESU.
This behavior is expected.
Windows Server 2008 R2 have reached the end of mainstream support and are now in extended support.
You could refer to the known issues in this update here:
https://support.microsoft.com/en-us/topic/july-6-2021-kb5004951-security-only-update-out-of-band-e05a81cd-9b45-4622-b715-ddb2367bca47
Info about ESU:
https://learn.microsoft.com/en-US/lifecycle/faq/extended-security-updates
Hope above information can help you.
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