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Windows Server for HPE ProLiant

HPE Reseller Option Kit Windows Server licences

Genuine HPE ROK Windows Server licences for HPE ProLiant servers. Standard or Datacenter, 2022 or 2025 — supplied to UK IT brokers, MSPs and IT managers with a 4-hour reply target. ROK is BIOS-locked to HPE hardware and not transferable to non-HPE servers, so check the build before you order.

Get HPE ROK pricingBrowse HPE ROK licences
01Genuine OEM kit
02Core count checked
03Regional SKU checked
044 UK business-hour response target

Why HPE ROK

Server-linked licensing,made clear.

HPE ROK is tied to the server it is bought for. We show the hardware, edition and regional SKU before you order.

  1. 01

    Standard, Datacenter and Essentials editions

  2. 02

    Windows Server 2022 and 2025 compatibility checked

  3. 03

    Activation bound to compatible HPE ProLiant hardware

  4. 04

    Physical cores and CAL needs checked before order

Compare HPE ROK editions

One server. The right licence.No guesswork.

Choose what the server needs to run. Then compare the HPE ROK edition and licence details.

We confirm the edition, physical cores, CALs and regional suffix before you order.

Windows Server / HPE ROK
STD / 2025

Selected edition

Standard

For physical and lightly virtualised hosts.

The usual route for HPE ProLiant deployments that need Windows Server with a lower virtual-machine density.

When it fits

  • Low-density virtualisation
  • Core-based licensing
  • HPE ProLiant only

UK / EU SKU

P77100-A21

BIOS-locked to compatible HPE ProLiant hardwareGet a quote

Regional part numbers

Right edition.Right region. First time.

HPE ROK is a compatibility decision, not just a part number. We check the server, edition, physical cores, CALs and region before an order is placed.

  • Region suffix matched
  • Edition matched to workload
  • Physical cores and CALs checked
  • HPE ProLiant fit confirmed

Featured catalogue / 06

The licences buyers come for first.

Six HPE ROK licences with current pricing confirmed by quote where required. Each licence is locked to HPE hardware, so check the Windows Server edition, core count and CALs before ordering.

View all 35 products

Questions / 07

The things people ask first.

Straight answers on editions, hardware fit, regional supply and licensing scope before an order is placed.

  • 01

    Standard or Datacenter — which do I need?

    Standard is commonly used for physical or lightly virtualised hosts; Datacenter is intended for highly virtualised and software-defined deployments. Virtualisation rights apply only after all physical cores on the server are correctly licensed, so the edition, core count and deployment are checked together.
  • 02

    Will ROK activate on a Dell or Lenovo server?

    No. ROK is BIOS-locked to HPE hardware. If you need licences for non-HPE servers, ask about standard Microsoft volume licensing.
  • 03

    Do you supply Windows Server 2022 and 2025 HPE ROK?

    Yes. Availability varies by edition, core pack and regional suffix. We check the HPE SKU and lead time against the ProLiant deployment before you order.
  • 04

    How do regional HPE ROK SKU suffixes work?

    HPE ROK part numbers vary by region. The UK and EU are our core markets; Americas SKUs are available on request. Send the server location and deployment country, and we will check the suffix before quoting.
  • 05

    Do I need Windows Server CALs with HPE ROK?

    For Windows Server Standard and Datacenter, users or devices accessing the server normally need Windows Server CALs. Remote Desktop Services requires separate RDS CALs if you use RDS. CALs are quoted separately from the HPE ROK server licence unless stated otherwise.
  • 06

    How many cores do I need to license?

    Windows Server Standard and Datacenter are licensed by physical cores, with a minimum of 16 core licences per server and 8 core licences per physical processor. If the server has more physical cores than the minimum, we quote the additional core packs needed for that host.
  • 07

    Should I choose Standard or Datacenter?

    Standard is usually the first check for low-density or non-virtualised servers. Datacenter is usually considered when the host is heavily virtualised because it includes broader virtualisation rights. The right answer depends on physical cores, processor count and VM count.

HPE ROK buying guides

Choose the right edition and core count.

Practical guides to editions, core coverage, server eligibility and genuine HPE ROK products.

HPE ProLiant licensing

Send the server spec.
We'll match the licence.

Tell us the ProLiant model, processor count, physical cores, edition and user or device access needs. We will check the compatible HPE OEM licence before quoting.

Get HPE ROK pricing