Hello there,
Please read the link below:
If i look at the supportmatrix 2012 R2 is supported on the following versions:
Latest Software Release Support
- Microsoft Windows Server 2012 R2 Standard, Datacenter (CMS and Managed Node)
- Microsoft Windows Standard Storage Server 2012 R2 (Managed Node)
You can read about this on the following URL:
http://h18013.www1.hp.com/products/servers/management/hpsim/dl_windows.html
When you read the first link it says that the Essentials version is not yet supported.
Hope that helped.
Kind regards,
Andrew